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Derivation of formula NCR+............................+nCn=2^n.properly described

Derivation of formula NCR+............................+nCn=2^n.properly described

Grade:12th Pass

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
7 years ago
Dear student,

Write down the binomial expansion of (1+x)^n and then put x=1 in that

That’s it

Thanks

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