1) Find the intervals of convergence for the function. f(x) = sum_(n = 1)^infinity x^n/n^2.
2) Find the intervals of convergence for f '.
3) Find the intervals of convergence for f ''.

Can someone show me step by step how to do this?

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?

The measures of the angles in △abc are given by the expressions in the table. angle measure angle a 65° angle b (3x−10)° angle c (2x)∘ find the value of x. then find the m∠b and m∠c.