Question

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: Let x be any positive integer then it is of the form 3q, 3q+1 or 3q +2. Now square
each of these and show that they can be rewritten in the form 3m or 3m + 1.)​

Answer 1

I hope u got it ....thanku ...any doubt ask again please