Question

if P(n):1³+2³+3³+....+(n+1)³=K so find the left hand side of P(2)​

Answer 1

Answer:

The correct statement is

${1}^{3} + {2}^{3} + {3}^{3} + ...... + {n}^{3} = {( \frac{n(n + 1)}{2} )}^{2}$

Now, P(2) : 1^3 + 2^3

= 1+ 8

= 9