Show that any positive odd integer is of the form 6 q + 1 or 6 q + 3 where q is a positive integer
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Let a be any positive odd integer and b=6 by division Lemma There q is a integer
a=6q+r. where 0<r<6
Then r=0,1,2,3,4,5
a=6q, a=6q+1, a=6q+2, a=6q+3,
a=6q+4
a=6q+1, a=6q+3{odd integer}
Hence any positive integer is form 6q+1, 6q+3.
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