You have to show that,
1^3+2^3+3^3+...+n^3=n^2(n+1)^2/4
Then, show that,
1+2+...+n=n(n+1)/2
Thus, since we see that if we square the bottom one then we get the top one, proof complete.
Look Heir for similar problem.
You have to show that,
1^3+2^3+3^3+...+n^3=n^2(n+1)^2/4
Then, show that,
1+2+...+n=n(n+1)/2
Thus, since we see that if we square the bottom one then we get the top one, proof complete.
Look Heir for similar problem.