1) Solve the series using the alternating series method:

12 - 6 + 3 - 1.5... 

I know the answer is 8 because it is in the back of my calculus textbook...I just don't know how it is 8.

2) Solve the series:  ((2/k) - (2/k+3)) where k = 1 to infinity. 

I know the answer is 11/3...I just don't know how to get there.