Any odd positive integer a is of the form . | vedclass

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(C) By Euclid's division lemma,for any positive integer $a$ and divisor $b=4$,we have $a = 4m + r$,where $r$ can be $0, 1, 2, 3$.If $r=0$,$a = 4m = 2(

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$4m+1$ or $4m+3$

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(C) By Euclid's division lemma,for any positive integer $a$ and divisor $b=4$,we have $a = 4m + r$,where $r$ can be $0, 1, 2, 3$.If $r=0$,$a = 4m = 2(2m)$,which is even.If $r=1$,$a = 4m+1$,which is odd.If $r=2$,$a = 4m+2 = 2(2m+1)$,which is even.If $r=3$,$a = 4m+3$,which is odd.Therefore,any odd positive integer is of the form $4m+1$ or $4m+3$.

Any odd positive integer $a$ is of the form . . . . . . ,where $m$ is an integer.

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