Perfect Square Proof - Prove that 2 * 10^500 + 15 or 2 * 10^500 + 16 is not a perfect square. Is your proof constructive or nonconstructive?
Note: ^ is to the power of
Proof by induction - Prove (by induction or any other way) that for any natural n the following is true:
1/(1x2) + 1/(2x3) + ..... + 1/[n(n+1)] =
1 - 1/(n+1)
Prime Factorization : Proof - Square-Free Integers - Show that every positive integer n can be written in the form n = ab where a is square-free and b is a square. Show that b is thi the largest square dividing n. (A square-free integer is an integer t ...