Prove that (x 1 +... + x n )2 n(x12+..+xn2 ) for all positive integers n and all real numbers x1,...,xn.
Posted: Thu Jul 14, 2022 3:47 pm
Prove that (x 1 +... + x n )2 n(x12+..+xn2 )for all positive integers n and all real numbers x1,...,xn.