Write the sum using summation notation, assuming the suggested pattern continues. 8 + 27 + 64 + 125 + ... + n3

Question

asked Nov 18, 2021 15.2k views

1 Answer

Mkataja · Answer 1 · 2021-11-25T17:29:05+0000

Answer:

∑(i+1)³,i=1→n-1

Explanation:

8=2³=(1+1)³

27=3³=(2+1)³

64=4³=(3+1)³

125=5³=(4+1)³

........................

n³=(n-1+1)³

∑ (i+1)³,i=1→n-1