1.

(2nC1)2+2×(2nC2)2+3.(2nC3)2.....+2n(2nC2n)2,When n = 100

Answer»

(2nC1)2+2×(2nC2)2+3.(2nC3)2.....+2n(2nC2n)2,When n = 100





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