5. Prove that for n e Z, n is even, if and only if n2 is...

Question

Question

5. Prove that for n e Z, n is even, if and only if n2 is even. 6. Verify by induction that 3 > 2n? n>0.

Answer 1

Answer #1

♡ for nez nis even iff ne is ever → let nez 8t n is even, le 7 mez sit n=2m on squaring + n²=um? . where dopez a lne :-) ne B

Answer 2

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