Which series converge, and which diverge? Give reasons for your answers. If a series converges, find its sum. sum_{n=1}^inftyfrac{2}{10^n}

midtlinjeg

midtlinjeg

Answered question

2021-02-02

Which series converge, and which diverge? Give reasons for your answers. If a series converges, find its sum.
n=1210n

Answer & Explanation

Anonym

Anonym

Skilled2021-02-03Added 108 answers

n=1210n

=2n=1110n

=2n=1(110)n

This a geometric series with common ratio =110<1

So this series will converge

Then we use the infinite geometric series sum formula

=2(110)11110=2(110)910=29

Answer: 29

Jeffrey Jordon

Jeffrey Jordon

Expert2021-12-27Added 2605 answers

Answer is given below (on video)

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