Wb Jee
Binomial Theorem
WB JEE 2009
SUBJECTIVE+2 / -02009
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 \({}^{n + 1}{C_{n - k}}\).
Wb Jee
WB JEE 2009
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 \({}^{n + 1}{C_{n - k}}\).