- #1

ChelseaL

- 22

- 0

Deduce that

n

Sigma (2r)^3 = 2n^2 (n+1)^2

r=1I'm not exactly sure how to start.

n

Sigma (2r)^3 = 2n^2 (n+1)^2

r=1I'm not exactly sure how to start.