Show that any positive odd integer is of the from 4q+1 or 4q+3 were q

1.	Show that any positive odd integer is of the from 4q+1 or 4q+3 were q is some integer
Answer» suppose that a is any positive integer then it is divided by 4 then we get q as a quotient and r as a remainder then by euclid\'s division lemma we get that a=4q + r where 0<= 4

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