Does the series (showing the picture) converge or diverge? Choose the correct answer below. 1) The integral test shows that the series converges 2) Th

opatovaL

opatovaL

Answered question

2021-01-16

Does the series (showing the picture) converge or diverge?
Choose the correct answer below.
1) The integral test shows that the series converges
2) The nth-term test shows that the series converges
3) The series diverges because the series is a geometric series with |r|>=1
4) The nth-term test shows that the series diverges
n=14nn+1

Answer & Explanation

doplovif

doplovif

Skilled2021-01-17Added 71 answers

The given series is n=14nn+1
Determine whether the series n=14nn+1 converges or diverges as follows.
The nth term test:
If the limit limnan either does not exist or not equal to zero, then n=1an diverges.
Find the limit limnan as shown below.
limnan=limn4nn+1
limnan=limn4nn(1+1n)
limnan=limn4nnn(1+1n)
limnan=limn4nnlimnn(1+1n)
1
=
Since the limit limn4nn+1 does not exist, the series n=14nn+1 diverges.
Hence, the nth term test shows that the series diverges.
Thus, the correct option is 4.
Jeffrey Jordon

Jeffrey Jordon

Expert2021-12-16Added 2605 answers

Answer is given below (on video)

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?