Show that any positive add integer is of the form 4q +1 or 4q+3,
q is some integer.
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Let a be any postive odd integer and b = 4. And b divides a forming quotient and remainder q and r respectively.
∴ a = 4q + r (where 0 ≤ r < b)
⇒ r can be 0, 1, 2, and 3.
So, any postive odd integer is in the form of (4q + 1) and (4q + 3) where q is some integer (as 2 divides 4q and 4q + 2).
NB: Select the correct subject.
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