1
WB JEE 2009
Subjective
+2
-0
Show that, for a positive integer n, the coefficient of xk (0 $$\le$$ k $$\le$$ n) in the expansion of 1 + (1 + x) + (1 + x)2 + ....... + (1 + x)n is $${}^{n + 1}{C_{n - k}}$$.
Questions Asked from Binomial Theorem (Subjective)
Number in Brackets after Paper Indicates No. of Questions
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