Question

what is the formulae for sum of cubes of n terms

Answer 1

Is there a formula to add a sequence of cubes? It seems that the sum is always square, but what is even more remarkable is that the sum of the firstn cubes, 13+23+...+ n 3 = ( n ( n+1)/2)2, which is the square of the n thtriangle number. For example, 13+23+...+103=(10×11/2)2=552 = 3025.