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JEE Main Mathematics question

MathematicsBinomial TheoremJEE Main

If (1+x)^n={}^nC_0+{}^nC_1x+{}^nC_2x^2+\ldots+{}^nC_nx^n, then \frac{{}^nC_1}{{}^nC_0}+\frac{2\,{}^nC_2}{{}^nC_1}+\frac{3\,{}^nC_3}{{}^nC_2}+\ldots+\frac{n\,{}^nC_n}{{}^nC_{n-1}} is equal to

Answer: (C)

Solution

Since , the term is

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Question ID VK-021101