Sn formula

Sn formula. This study evaluated the effects of a term infant formula containing high sn-2 palmitate term infant formula (sn-2) or an identical formula supplemented Mar 22, 2024 · Exercise 9. Oct 14, 2021 · Stannous cation | Sn+2 | CID 104883 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety Tin. It is a conjugate base of a 1,2-dioleoyl-sn-glycero-3-phosphocholine (1+). A few solved problems on the arithmetic sequence are given below. In materials science, fatigue is the weakening of a material caused by cyclic Introduction to Tin (IV) Hydroxide. An AP is a sequence of numbers where the differences between every two consecutive terms are the same. A repeating decimal can be written as an infinite geometric series whose common ratio is a power of 1 / 10. Information on this page: Notes. For simplicity's sake let's rename the sum of the series ∑n k=1 a ∗rk−1 as Sn. Finding the empirical formula of a substance with a percent composition of 78. Density 3. Apr 12, 2024 · tin (Sn), a chemical element belonging to the carbon family, Group 14 (IVa) of the periodic table. Here is an explicit formula of the sequence 3, 5, 7, …. Khan Academy is a nonprofit with the mission of providing a Dec 13, 2020 · In this video we'll write the correct formula for Tin (IV) carbonate: Sn(CO3)2. STEPS: First of all, type 1 in Cell B5. In order to find any term, we must know the previous one. S n = Sum of n terms. $\begingroup$ How do you do the step from the line above "it becomes" to the line below it? That is wrong, of course. Sum of First n Positive Integers (S n = 1 + 2 + 3 + . So, instead of writing a1 + a2 + a3 + a4 + a5 + a6, we could write Sn. S 20 = 20 ( 5 + 62 ) 2 S 20 = 670. Popular Problems . Arithmetic Sequence Formula: a n = a 1 + d (n-1) Geometric Sequence Formula: a n = a 1 r n-1. sn=n/2(2a+(n-1)d) Oct 19, 2021 · is also a geometric progression with common ratio 1/r 1 / r. Example 2: Find the sum of the first 40 terms of the arithmetic sequence 2 , 5 , 8 , 11 , ⋯ . Tin (IV) oxide, also known as stannic oxide, is the inorganic compound with the formula SnO2. Uses. So, Sn = a + ar + ar2 + ar3 + ⋯ + arn−1. Here, a is the first term and r is the common ratio of the GP and the last term is not known. GP Sum. + n) is given as. Move the slider n to find a specific T n. Suggest Corrections. Sum to n Terms of Arithmetic Progression Formula. Apply Simple Formula to Add Automatic Serial Number in Excel. Learn more about tin's properties, history, uses, and more from authoritative sources at PubChem, a free online database of chemical information. S n = n/2 (first term + last term) Where, a n = n th term that has to be found. May 1, 2021 · Historically, S-N curve has been expressed in the form of an exponential relationship between applied stress σ and number of cycles to failure N f. Irritates skin and eyes. A GP can be finite or infinite. Learn the general form of the arithmetic series formula and the difference between an arithmetic sequence and an arithmetic series. Aluminium + Stannic Chloride = Tin + Aluminum Chloride. There will be n of these terms. Quick Note: This also a dynamic method to add serial numbers. P and aₙ is the nth term of the A. ⇒ 𝑑/𝑑𝑥 ∙ (𝑎 + 𝑏 (𝑥 – 1)) = 𝑏, so it still holds up. It also reacts with acetic anhydride or acetic acid to produce tin(IV) acetate and with nitric oxide to produce tin(IV) oxynitrate. 1 Cycle Sequence 6. Example. Step 4: Substitute Coefficients and Verify Result. Let’s follow the steps below to see how we can implement the formula. Here, 'a' is the first term and 'r' is the common ratio of GP. Aug 29, 2019 · 2. This video explains how to derive the formula that gives you the sum of an arithmetic series. Dec 18, 2020 · In this video we'll write the correct formula for Tin (II) nitrate (Sn(NO3)2 ). An arithmetic progression (AP) may be a sequence where the differences between every two consecutive terms are equivalent. What happened to $\;\frac2n\;$ in the expression above A soft, pliable metal. Even if we changed the notation to, for example, 𝛴 (𝑎 + 𝑏 (𝑥 – 1)), 𝑥 = 1 → 𝑛 ⇒. When the kth difference of a sequence is constant, one can write down the general term using Newton's formula. Let’s have a look at the formula given in the next section to know the formula of sum of infinite GP. Description. term(n) = term(n – 1) × r. Example 1: Finite geometric sequence: 1 2 , 1 4 , 1 8 , 1 16 , , 1 32768. El óxido de estaño (II) es un compuesto cuya fórmula es SnO. Temperature (K) A B C Reference Comment; 250. This paper elucidates the essential structure of S-N curve based on the prediction method for fatigue life and limit of materials containing defects from the viewpoint of mechanics of small crack. Apr 29, 2017 · Como Encontrar de manera fácil, a Sn y An de una progresión. Características. Enter the following formula in the cell from where you want to start your serial numbers. 1. Written in sigma notation: ∑ k = 1 15 1 2 k. Tin has many uses. Since we're looking for the partial sum of the first six, we can just plug in 6 into Sn and find the actual sum of the first six terms. Discover the partial sum notation and how to use it to calculate the sum of n terms. “=COUNTA(F$1:F1” Drag down the formula up to the serial number your want. Arithmetic Mean: The Arithmetic Mean is the simple average of a given set of numbers. Learn this proof of the arithmetic series formula – you can be asked to give it on the exam: Write the terms out once in order. In the first method, we will use a simple formula to add the automatic serial number in Excel. 3. Learn how to find the common difference, nth term, and sum of an arithmetic progression (AP) using formulas and examples. ?) Tin (II) fluoride, commonly referred to commercially as stannous fluoride [1] [2] (from Latin stannum, 'tin'), is a chemical compound with the formula SnF 2. Example 1: Find the sum of the first 20 terms of the arithmetic series if a 1 = 5 and a 20 = 62 . The SNR represents the ratio between the signal and the background noise. Feb 3, 2018 · Find an answer to your question sn formula class 10 AP. Tin is the Element having Atomic Number 50 and is Denoted by the Symbol Sn (Latin Name: Stannum). What is the sum of the first 5 terms of the following geometric progression: 2, 4, 8, 16, 32 ? S5 = 2( 1 - 2 5) 1 - 2 = 2( 1 - 32) -1 = 62. Formula (First n Numbers in an AP): S n = n/2 [ 2a + ( n – 1 ) d ] where Sn = sum of the n terms n = total terms a = first term d = common difference. The first formula is n/2(a+aₙ), where n is the number of terms, a is the first term of the A. May 10, 2020 · Tn =Sn-Sn-1 (derivation) S n-1 = u (n – 1) + 1/2 a (n-1) 2. The terms will pair up to give the same sum. For quadratic sequences, one can then use the usual sum formulas. Sₙ formula for A. where n is the natural number. Consider an infinite GP, a, ar, ar 2, ar 3,…, ar n-1, ar n, …. Formula 5. The general formula for the n-th term is: 2024-05-25. Tin is a chemical element with the symbol Sn (from Latin: stannum) and atomic number 50. Definition 1: A mathematical sequence in which the difference between two consecutive terms is always a constant and it is abbreviated as AP. Sn (OH)4. Tin is in the +2 oxidation state. To write the formula for Tin (II) nitrate we’ll use the Periodic Table, a Comm What is Fatigue Life – S-N Curve – Woehler Curve – Definition. 0 license and was authored, remixed, and/or curated by LibreTexts. This formula allows us to simply plug in the number of the term we are interested in, and we will get the value of that term. These relative weights computed from the chemical equation are sometimes called equation weights. 377: Stull, 1947: Coefficents calculated by NIST from author's data. Ionic and molecular compounds are named using somewhat-different methods. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Tin is widely used for plating steel cans used as food containers, in metals used for bearings, and in solder. 1. Because Sn( Tin (II) bromide. Engineers use this method to determine the fatigue life of a material. It is abbreviated as S/N or SNR. A silvery-colored metal, tin is soft enough to be cut with little force, and a bar of tin can be bent by hand with little effort. f(n) = f(0) + Δf ( 0) 1! n + Δ2f ( 0) 2! n(n − 1) + ⋯, where Δf are the successive differences. And, since these are all Jun 5, 2023 · The sum of an arithmetic progression upto n terms is given by the formula: Sn = n 2(2a + (n − 1)d) S n = n 2 ( 2 a + ( n − 1) d) where a is the first term, d the common difference. Example: Write a recursive formula for the following geometric sequence: 8, 12, 18, 27, … Solution: Dec 18, 2023 · 1. PC (18:1 (9Z)/18:1 (9Z)) is a metabolite found in or produced by Saccharomyces cerevisiae. 8% Tin. 2 Cycle Counting Complex Signals . Calculating the distance travelled n th seconds. ChemSpider ID 4509318. Now apply the usual sum formula. 1 Naming an Ionic Compound. 4. The partial sum of the infinite series Sn is analogous to the definite integral of some function. The procedure for naming such compounds is outlined in Figure 2. Name the cation. Suppose we have the following terms where [latex]\large{d}[/latex] is the common difference. Other data available: Vibrational and/or electronic energy levels. Learn how to find the sum of n terms of an arithmetic progression using a formula derived from Gauss's method. → If a, b, c are in AP Jan 21, 2022 · In an Arithmetic sequence Tn = Sn - Sn-1. Burns, but may be difficult to ignite. Introduction The definition of failure for a physical part varies. In order to find the fifth term, for example, we need to plug n = 5 Tin is a chemical element with the symbol Sn and atomic number 50. Toxic by ingestion. We have two terms so we will do it twice. Learn how to calculate the sum of the first n terms of an arithmetic sequence using two formulas derived from the nth term formula. 95 g / cm3. – user348749. When bent, the so-called "tin cry" can be heard as a result of twinning in tin crystals. "Real World" Considerations 6. With trifluoroacetic acid a similar compound solvated with trifluoroacetic acid is produced. The formula calculates the ratio of the intensity of the received signal to the strength of the disturbance in the transmitter. Binary ionic compounds typically consist of a metal and a nonmetal. See examples, derivation and FAQs on sum of arithmetic sequence. Therefore we use the formula of the sum of n terms in the arithmetic progression for determining the formula for the sum of natural numbers. The the molar mass of an element is equal to the atomic weight. S nth = S n – S (n-1), S nth = un + ½ an 2 – [u (n-1) + ½ a (n-1) 2 ]. History 6. El óxido de estaño (II) está formado por: 1 átomo de estaño. Stannous chloride, solid appears as crystalline mass or flaky solid with a fatty appearance. In the case of an infinite GP, the formula to find the sum of its first 'n' terms is, S n = a(1 - r n) / (1 - r), where 'a' is the first term and 'r' is the common ratio of the GP. Add the two sums together. When we know the value of the nth term to be say l, the formula is given by S = n 2(a + l) S = n 2 ( a + l). Answer. A silvery-colored metal, tin is soft enough to be cut with little force, [10] and a bar of tin can be bent by hand with little effort. So treat 27/4 27 / 4 as first term, 4/3 4 / 3 as common ratio and given sum is 175/4 175 / 4. GP sum is calculated by one of the following formulas: Sum of n terms of GP, S n = a (1 - r n) / (1 - r), when r ≠ 1. Move the sliders a and d to change the AP. Move the slider n to find the sum of the AP to a specific number of terms, S n. For instance, the sequence 2, 6, 10, 14, … is a progression (AP) because it follows a The theoretical maximum data rate of a transmission medium is related to the signal to noise ratio and can be determined using a formula attributed to Shannon and Hartley. Sn(OH) 2 Nomenclatura sistemática: dihidróxido de estaño Nomenclatura stock: hidróxido de estaño (II) Nomenclatura tradicional: hidróxido estañoso Tipo de compuesto: hidróxido Mar 13, 2014 · Mar 13, 2014 at 22:46. 175 4 = 27 4 × (4/3)n − 1 (4/3) − 1 175 4 = 27 4 × ( 4 / 3) n − 1 ( 4 / 3) − 1. This video also explains the difference between an arithmetic Formula 1. Sum of infinite terms of GP, S n = a / (1 - r), when |r| < 1. 2: Ionic Compounds: Formulas and Names is shared under a CC BY-NC-SA 4. It could mean that a crack has initiated on the surface of the part. to compute n n. 2 (S (N)) = (n+1)n occurs when you add the corresponding pieces of the first and second S (N). The sum of a GP is the sum of a few or all terms of a geometric progression. Jul 31, 2023 · A progression is a special sequence for which it is possible to obtain a formula for the nth term. The sum of the first n natural number is given by the formula: \(\sum_1^n=\left[\frac{n\left(n+1\right)}{2}\right]\). Since there is an equal number of each element in the reactants and products of 4P3 + 9Sn2 = 6Sn3P2, the equation is balanced. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. Identify the Sequence Find the Next Term. Let us understand this concept in brief by taking an example. Therefore, Sn can be thought of as the anti-derivative of a(n), and a(n) can be thought of like the derivative of Sn. So, for example, S10 S 10 refers to the sum of the first 10 10 terms, S250 S 250 refers to Mar 18, 2017 · #sqrt3 + 3 + 3sqrt 3+ 9# using the formula #Sn=u1(1-r^n)/(1-r)# Algebra Exponents and Exponential Functions Geometric Sequences and Exponential Functions 1 Answer The formula for the first n terms of an arithmetic progression is. Identify the Sequence 4, 12 It is functionally related to an oleic acid. What is the first term of the series? Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. first term = [latex]\large{a}[/latex] Derivation of Sum of Arithmetic Progression. To write the formula for Tin (IV) carbonate we’ll use the Periodic Table, a Co A geometric series is a series whose related sequence is geometric. The infinite sequence a(n) is that function. How to Derive the Arithmetic Series Formula. Tin (II) fluoride. It results from adding the terms of a geometric sequence . How to find the empirical formula for 78. It is defined to be the summation of your chosen integer and all preceding integers (ending at 1). Below 13°C it slowly changes to a powder form. 5 to 386. S (N) = n + (n-1) + + 2 + 1; is the first equation written backwards, the reason for this is it becomes easier to see the pattern. Here, ‘a’ represents the first term, ‘d’ is the common difference, and ‘n’ denotes the number of terms. May 12, 2013 · Corbettmaths - This video explains the proof for the sum of an arithmetic series. In this case, we will add 1 with the value of the previous cell. May 3, 2023 · These numbers are arranged in an arithmetic sequence. The Arithmetic Progression is the simplest and most widely used sequence in maths. Sum of Infinite GP. 1,2-Dioleoyl-sn-Glycero-3-Phosphocholine is a natural product found in Trypanosoma brucei with data available. Jan 14, 2024 · 2. In this video we'll write the correct formula for Tin (IV) sulfate (Sn(SO4)2). Thus, the sum of infinite GP is given by the formula: May 3, 2024 · Signal to noise ratio helps compute the value of a signal-to-noise, which informs us about the signal’s quality. Count the number of atoms of each element on each side of the equation and verify that all elements and electrons (if there are charges/ions) are balanced. Se trata de un compuesto de color negro, azul o rojo. When Tin (Sn) bonds with four Hydroxide (OH) ions, it forms the inorganic compound, Tin (IV) Hydroxide. 902199 Da. The mineral form of SnO 2 is called cassiterite, and this is the main ore of tin. It takes a high polish and is used to coat other metals to prevent corrosion, such as in tin cans, which are made of tin-coated steel. Formula: H 2 O 4 Sn. (For example, your first data entry is starting from F1, enter below formula in E1). Then you can also find a1 a 1 as last term of our Objectives: Levels of stool fatty acid soaps and beneficial bacteria differ between formula-fed and breast-fed infants; addition of specific formula ingredients may reduce these differences. To write the formula for Tin (IV) sulfate we’ll use the Periodic Table, a Commo Sn = n2 (2a+ (n-1)d) is the sum of an AP’s n phrases. This formula, known as the Shannon-Hartley Law is given in Equation 10. Each term therefore in an arithmetic progression will increase or decrease at a constant value called the common difference, d. 723. ?) Tin (II) bromide is a chemical compound of tin and bromine with a chemical formula of SnBr 2. P is n/2(a+aₙ) and the other one is n/2(2a+(n-1)d). Use the Sn Formula for Arithmetic Series. Related finite geometric series: 1 2 + 1 4 + 1 8 + 1 16 + + 1 32768. The first step is to use the information of each term and substitute its value in the arithmetic formula. The sum of ‘n’ terms in an AP can be calculated using a straightforward formula: Sn = n/2 [2a + (n-1)d]. This is a good way to appreciate why the formula works. and. The sum to infinity of a geometric progression The sum of the first n terms of an arithmetic sequence is called an arithmetic series . S-N curve, also known as a Wöhler curve plots applied stress (S) against component life or number of cycles to failure (N). term(n) = term(n – 1) × 2. Step 2: Click the blue arrow to submit. Q3 Sn of an AP formula. Adopta una estructura de forma tetragonal, es decir, estructura de capas con cuatro átomos de estaño cuadrados piramidales coordenadas. Where “a” is the first term, “d” is a common difference, and “n” is the number of terms. Melting point 247 °C. Let us consider adding the first 30 numbers in the sequence, 2, 6, 10, 14, 18, … The formula to calculate the sum of n terms of AP is given as: Sn= n/2[2a + (n – 1)d]. Each term is the product of the common ratio and the previous term. There is an opportunity to derive a formula for the nth term in a progression. Molecular weight: 184. Solution to part a) The problem tells us that there is an arithmetic sequence with two known terms which are [latex]{a_5} = – 8[/latex] and [latex]{a_{25}} = 72[/latex]. \) Tin. Definition 1: A sequence in mathematics where the difference between two consecutive terms is always constant is called an Arithmetic Progression (AP). Monoisotopic mass 119. It has many applications in metallurgy, medicine, and industry. First find the 40 th term: Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. The partial sum is certainly that. In this video we'll write the correct name for Sn(CO3)2. Let us learn the sum of arithmetic progression And so we get the formula above if we divide through by 1 – r . Using a periodic table, find the molar mass of each element. The common ratio of a geometric series is 3 and the sum of the first 8 terms is 3280 . The case \(a=1,n=100\) is famously said to have been solved by Gauss as a young schoolboy: given the tedious task of adding the first \(100\) positive integers, Gauss quickly used a formula to calculate the sum of \(5050. 18162: 1384. Find the sum of the infinite geometric series: ∑∞ n = 1 − 2(5 9)n − 1. It is a soft, silvery white metal with a bluish tinge, known to the ancients in bronze, an alloy with copper. Average mass 118. The trick to finding a formula for the sum of this type of series is to multiply both sides of the previous equation by r. See examples, proof, tips and tricks, and challenging questions on sum of AP. 537-54. In this lesson, we are going to derive the Arithmetic Series Formula. On simplifying the mentioned equation, S nth = u + ½ a (2n-1). [9] With many other names, this oxide of tin is an important material in tin chemistry. Since there is an equal number of each element in the reactants and products of Sn + S = SnS, the equation is balanced. Tin is a chemical element; it has symbol Sn (from Latin stannum) and atomic number 50. To write the name for Sn(CO3)2 we’ll use the Periodic Table and follow some simple rules. This means that the sigma notation will be 𝛴 (𝑎 + 𝑏𝑥), 𝑥 = 0 → 𝑛 – 1, where 𝑛 is the total number of terms. Tin (IV) Hydroxide, sometimes also referred to as Stannic Hydroxide, is a chemical compound with a formula of Sn (OH) 4. Al + SnCl4 = Sn + AlCl3 is a Single Displacement (Substitution) reaction where four moles of Aluminium [Al] and three moles of Stannic Chloride [SnCl 4] react to form three moles of Tin [Sn] and four moles of Aluminum Chloride [AlCl 3] Show Chemical Structure Image. Given an arithmetic sequence, we can calculathe the sum of its first n n terms, which we write Sn S n, using the formula : Sn = n 2(u1 +un) S n = n 2 ( u 1 + u n) Where u1 u 1 is the first term of the sequence and un u n is the nth n th term. This means that the first term in a partial sums sequence is the n=1 term, the second ter . Arithmetic Progression (also called arithmetic sequence), is a sequence of numbers such that the difference between any two consecutive terms is constant. It is a colourless, diamagnetic, amphoteric solid. Place the ions in their proper order: cation and then anion. Learn about the Properties and Uses of Tin along with its Health Hazards. r ∗Sn = r(a + ar + ar2 + ar3 + ⋯ + arn−1) = ar + ar2 + ar3 + ⋯ + arn. Tin is a chemical element; it has symbol Sn and atomic number 50. d =a2 −a1 = a3 Each of these series can be calculated through a closed-form formula. Finding the empirical formula of a substance with a percent composition of 21% Oxygen (O), 79% Tin (Sn) requires just a few easy steps. Therefore, the formula for a convergent geometric series can be used to convert a repeating decimal into a fraction. 38, where C is the data rate, B is bandwidth in Hz, and N is the random noise power in watts. . Therefore, the equation for distance traveled in nth second = S n t h = u + a ( n - 1 2). Jan 18, 2024 · What we saw was the specific, explicit formula for that example, but you can write a formula that is valid for any geometric progression – you can substitute the values of a 1 a_1 a 1 for the corresponding initial term and r r r for the ratio. Chemists use nomenclature rules to clearly name compounds. Molar Mass (g/mol) O {Oxygen} The sum of infinite GP is nothing but the sum of infinite terms of a GP (Geometric Progression). 9. Sn Element (Tin) - Tin is a soft, silvery-white metal located in the carbon group, similar in appearance to fresh-cut aluminum. 1 2. Since there is an equal number of each element in the reactants and products of Sn4 + 4O2 = 4SnO2, the equation is balanced. SN-Curve 3. 1 and uses the following steps: Figure 2. Metals that form only one cation. a 1 = 1 st term in the sequence. Definition 2: An arithmetic sequence or progression is defined as a sequence of numbers in which for every pair of consecutive terms, the second number is obtained by adding a fixed number to the first one. May 4, 2023 · Sum of n terms in an arithmetic progression is given by the formula S= n 2[2a+(n−1)d] S = n 2 [ 2 a + ( n − 1) d] in which a = first term, n = number of terms and d = common difference. Alloys of tin are important, such as soft solder, pewter, bronze and phosphor bronze. However, we are given the formula for the sum. When we’re discussing the SNR in data communication, a high SNR will indicate that we’re successfully transmitting information. Determine the Molar Mass of Each Element. Geometric series formula. Used in the manufacture of dyes, pharmaceuticals and as a tanning agent. 3. Definition. . P. d = Common difference. …. The formula is: So, with n = 101 and d = 2, an = 1 + 100(2) = 103 c) Using the formula for the sum of an arithmetic series, what is the sum of the first 20 terms? problem solving exercise There are many ways to solve this problem, but the generally accepted one is to realize that the incoming integers comprise an arithmetic series (or at least Tin sulfide (SnS2) | SnS2 or S2Sn | CID 15238661 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological Step 4: Substitute Coefficients and Verify Result. If we have a high SNR, it means that the strength of our signal is significantly greater than the noise. On the other hand, a partial sums sequence is called s_n, and its n values increase by additive increments. Most important formula, 100% one question asked based on this formula in board exams. Find the nth term if sum of n May 26, 2021 · A normal series is given by a_n, where a_n is the sequence whose n values increase by increments of 1. 8% Tin (Sn) requires just a few easy steps. Jul 16, 2021 · 8. Molecular Formula Sn. S n = u + a (n – ½). It is noteworthy that such a ratio is a qualitative measure. In this maths video, expert teacher Stephen explains how the Sn formula is used to sum a number of terms in an arithmetic sequence by working through an example. a ( n) = 3 + 2 ( n − 1) In the formula, n is any term number and a ( n) is the n th term. Choose "Identify the Sequence" from the topic selector and click to see the result in our Algebra Calculator ! Examples . Hence, the formula for distance travelled in nth second is given by, Sn = u + a (n – ½). Write the terms out again in reverse order. Tin(IV) nitrate reacts with trifloroacetic acid anhydride to yield (NO 2 +) 2 [Sn(OOCCF 3) 6 2−] which is a nitronium salt. Options: Switch to calorie-based units. n = Number of terms. Sep 16, 2023 · Also Check – Linear Equation Formula. Jan 11, 2024 · Recursive formula of Geometric Series is given by. Damage Accumulation Simple Example 4. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Word Equation. 710 Da. bd iy ka br vh ak gk vw ky wd