Question

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

Answer 1

Answer:

∑(i+1)³,i=1→n-1

Step-by-step 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