Express the sum in sigma notation. 1 1 19 20 1 1 1 16 17 18 Choose the correct sigma notation of the sum. 18 A. E (-1*, k+1 k= 14 19 O B. E (-1)k1 k+1 k= 15 19 Oc. E (-1*! k= 15 19 OD. E (-1-1 k= 15

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A: Given query is to find series converges or diverges.

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Q: Can i get help step by step?

A: Since we can express a sum in many ways, so to get the particular way we will check the options by…

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A: ∑n=1∞-23n6n+1=∑n=1∞-8n6-n6 ∑n=1∞-8n6-n6 is a geometric series with the first term a = -43 andcommon…

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A: To determine the value of the series if it converges or state if the series diverges.

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Q: 8 3. Then 4 Let f be the sum of the power series √1+5n n=0 (A) ƒ"(0) = √11 (B) ƒ(7)(0) = 0 (C) the…

A: Given that  f be the sum of the power series  ∑n=0∞11+5nx3n. The correct option is (B).  f(7)(0)=0

Q: 1 Which of the following shows two correct sigma notations for the series 1 1 +1 2(3) 2(2) 2(4) 2(9)

A: Given that series (y) = 122 +123+124+125+...........129

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Q: How do I do this problem?

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A: Given : Geometric series with two terms (....... +7.5 + 3.75 +......)  Sum of the series = 240 To…

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A: Let us use geometric series to determine whether the series is divergent or not in the next step.

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A: To find the series sum :-

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A: First option is correct.

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A: Find the sum

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A: The sum of the series is 400.

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A: Explanation of the answer is as follows

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A: nth partial sum of the series ∑n=1∞an is given by Sn=n+2n-3 hence  an=Sn-Sn-1

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A: Given query is to write the expression in Sigma notation.

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A: Given series is a Geometric progression (GP).

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Q: How is the series 1+ 6 +11+ +101l represented in summation notation? .. 21 26 Submit Answer Ο Σ5-4)…

A: Given that the series is       1+6+11+....+101 Here we have to represent the series into summation…