Mathematics, 24.12.2020 19:30, nanakwameyeb

Prove that (T_n)^2 -2(T_n-1)^2 +(T_n-2)^2 is independent of n, where Tn stands for nth term of A. P.

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Prove that (T_n)^2 -2(T_n-1)^2 +(T_n-2)^2 is independent of n, where Tn stands for nth term of A. P....