Question

number of columns in wbich they can march?
4. Use Euclid's division lemma to show that the square of any positive integer is either of
the form 3m or 3m + 1 for some integer m.
(Hint: Letx be any positive integer then it is of the form 39, 39 + 1 or 39+2. Now square
each of these and show that they can be rewritten in the form 3m or 3m + 1.]​

Answer 1

Solution in attachment.

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