Question

how can I carry out the following summation?

Answer 1

sub i=1 and then go up until i=4

Answer 2

Suppose we want to sum from 1 to 40. I need to use a formula for potenciacion

Answer 3

what formula?

Answer 4

There are formulas for summation, por example when if we have "i" inside the sigma sign. Or "i2"

Answer 5

there are formulas like (n(n+1))/2

Answer 6

But for power under the sigma sign??

Answer 7

seems like you are talking about using a proof, you look like you are on the correct path