a) Prove that in modulo 6, it is not possible for a perfect square to be congruent to 2 or 5. (Is there a way to prove t

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a) Prove that in modulo 6, it is not possible for a perfectsquare to be congruent to 2 or 5. (Is there a way to prove thiswithout contradiction? If not, just do it normally.)b) Hence or otherwise prove that there do not exist threeconsecutive integer values of n for which 29n+5 is a perfectsquare.