Which one or ones of the following factors in the general term of a series prevent the use of the integral test to test for convergence?

I. Negative exponents
II. Oscillating terms
III. Factorials

Question

Which one or ones of the following factors in the general term of a series prevent the use of the integral test to test for convergence?

I. Negative exponents
II. Oscillating terms
III. Factorials

anonymous · Answer

@ganeshie8 @e.mccormick @iambatman

anonymous · Answer

I only
II and III
I and II 
I, II, and III

ganeshie8 · Answer

Integral requires the function to be positive, so oscillating terms prevent the use of integral test for sure

ganeshie8 · Answer

negative exponents are fine : $n^{-2}$ is just $\frac{1}{n^2}$

ganeshie8 · Answer

Factorials and integrals don't get along well
so I go with II and III

anonymous · Answer

Thank you.