Randolph College
Department of Mathematics and Computer Science

 

Homework # 13 - Math 1150


The problems on this homework must be done alone.  The honor code is in effect.

You may submit the solutions twice, if you wish.

 First Name:  Last Name:

 

1. Consider the series \(\sum_{n = 1}^{\infty} \frac{n^2 + n + 3}{2n^2 + 10 n}\)

a.  The series converges by the \(n\)th term test.

b.  The series diverges by the \(n\)th term test.

c.  The series converges by the integral test.

d.  The series diverges by the integral test.

 

2. Consider the series \(\sum_{n = 2}^{\infty} \frac{1}{n\ln n}\)

a.  The series converges by the \(n\)th term test.

b.  The series diverges by the \(n\)th term test.

c.  The series converges by the integral test.

d.  The series diverges by the integral test.

 

3. Consider the series \(\sum_{n = 1}^{\infty} \frac{3^n}{4^n - 1}\)

a.  The series converges by the \(n\)th term test.

b.  The series diverges by the \(n\)th term test.

c.  The series converges by the LCT.

d.  The series diverges by the LCT.

 

4. Consider the series \(\sum_{n = 1}^{\infty} (-1)^{n+1} \frac{n}{n+1}\)

a.  The series converges by the \(n\)th term test.

b.  The series diverges by the \(n\)th term test.

c.  The series converges by the integral test.

d.  The series converges by the LCT.

 

5. Find the limit of the series \(\sum_{n = 1}^{\infty} \frac{9}{2}(\frac{1}{10})^n\)

a.  \(\frac{9}{10}\)

b.  \(4.75\)

c.  \(5\)

d.  \(\frac{11}{2}\)

e.  This series diverges.