# Math Help - Calculus

1. ## Calculus

I need help on this problem. The answer is 36, but I'm no sure how the process works in order to get that answer. Will someone please help? Thank you!!!!!

Evaluate:
13
4
k=5

2. Originally Posted by juicysharpie
I need help on this problem. The answer is 36, but I'm no sure how the process works in order to get that answer. Will someone please help? Thank you!!!!!

Evaluate:
13
4
k=5
You have a sum of constant summands:

$4+4+4+4+\underbrace{4+4+4+4+4+4+4+4+4}_{\text{summ ands with indices 5 to 13}}+4+4+4+4+...$

There are 9 summands of 4.