Question

show that square of any positive odd integer is as the fom 8q+1,where q is any positive integer

Answer 1

8q+0
r= o even
8q+1
r=1, odd
8q+2
r=2 even
8q+3
r
= 3 odd
8q+4
r=4
even
8q+5
r= 5
odd
8q+6.
r=6
even
8q+7
r = 7 odd