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simlify-A-n-C-n-1-2-2-C-n-2-2-n-C-n-n-2-




Question Number 31045 by abdo imad last updated on 02/Mar/18
simlify A_n =(C_n ^1 )^2  +2(C_n ^2 )^2   +n (C_n ^n )^2 .
simlifyAn=(Cn1)2+2(Cn2)2+n(Cnn)2.

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