Question

(Que. 8) Prove that if x and y are odd positive integer then x+y is
even but not divisible by 4.
nin
Que, 9) Prove that n power 2-n is divisible by 2 for every positive integers n.
Que, 10 Prove that the product of two consecutive positive integers
is divisible by 2.
plz solve it​

Answer 1

it is the ans 8

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