Question

Show that the square of any positive even integer is of the form 2q any every positive odd integer is of the form 2q +1

Answer 1

it is in ncert ex 1.1

Answer 2

$\huge \bf{ \red{hey}}$

$\huge{ \mathfrak{here \: is \: answer}}$

let a be any positive integer

then

b=2

0≤r<b

0≤r<2

r=0,1

case 1.

r=0

a=bq+r

2q+0

2q

case 2.
r=1
a=bq+r

2q+1

from above it is proved.

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$\huge{ \green{thanks}}$