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If A=2nC0⋅ 2nC1+ 2nC1 2n−1C1+ 2nC2 2n−2C1+…+2nC2n−1⋅ 1C1then A is

Answer»

If A=2nC0 2nC1+ 2nC1 2n1C1+ 2nC2 2n2C1++2nC2n1 1C1

then A is



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