InterviewSolution
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| 1. |
यदि `(1+x)^(n)=C_(0)+C_(1)x+C_(2)x^(2)+...C_(n)x^(n)` तो साबित कीजिए कि `""^(n)C_(0)""^(n+1)C_(1)+""^(n)C_(1).""^(n+1)C_(2)+...+""^(n)C_(n).""^(n+1)C_(n+1)=((2n+1)!)/((n+1)!n!)` |
| Answer» `(1+x)^(n)=C_(0)+C_(1)x+C_(2)x^(2)+...+C_(n)x^(n)` और `(x+1)^(n+1)=""^(n+1)C_(0)x^(n+1)+""^(n+1)C_(1)x^(n)+...+""^(n+1)C_(n+1)` | |