Evaluate the infinite sum:
With the given condition that:
Please show your work too — thanks in advance!

Consider the k-th partial sum,

More compactly,

(this is just another case of a similar sum you asked about a while ago [24494877])

The infinite sum is the limit of the partial sum as k goes to infinity. We have

since the non-constant terms in the limit converge to 0.

Alternatively, recall that for |x| < 1, we have

Differentiating both sides gives

also valid for |x| < 1. Take x = 1/π and you get the sum you want to compute.

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

bn,mn,n.vn.

step-by-step explanation: