A= $3^{2}$ + $6^{2}$ + $9^{2}$ +…+ $30^{2}$
B= $2^{3}$ + $4^{3}$ + $6^{3}$ +…+ $20^{3}$
A= $3^{2}$ + $6^{2}$ + $9^{2}$ +…+ $30^{2}$ B= $2^{3}$ + $4^{3}$ + $6^{3}$ +…+ $20^{3}$
By Katherine
By Katherine
A= $3^{2}$ + $6^{2}$ + $9^{2}$ +…+ $30^{2}$
B= $2^{3}$ + $4^{3}$ + $6^{3}$ +…+ $20^{3}$
A=1.3^2+2^2.3^2+…+3^2.10^2
= 3^2(1+2^2+…+10^2)
=9.385=3465
B=2^3(1+2^3+…+10^3)
=8.3025
=24200