1.

The square of a even number is?​

Answer»

ODD and even square numbers

Squares of even numbers are even (and in FACT DIVISIBLE by 4), since (2n)2 = 4n2. Squares of odd numbers are odd, since (2n + 1)2 = 4(N2 + N) + 1. It follows that square roots of even square numbers are even, and square roots of odd square numbers are odd.



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