Binomial TheoremMedium
Question
In the expansion of (1 + x)n (1 + y)n (1 + z)n, the sum of the co-efficients of the terms of degree ′r′ is -
Options
A.n3Cr
B.nCr3
C.3nCr
D.3 . 2nCr
More Binomial Theorem Questions
Let $C_{r}$ denote the coefficient of $x^{r}$ in the binomial expansion of $(1 + x)^{n},n \in \mathbb{N},0 \leq r \leq n...If the 4th term in the expansion of is , then the values of a and n are-...The coefficient of x4 in , | x | < 1, is...If n is even natural and coefficient of xr in the expansion of is 2n, (|x| < 1), then -...The sum of 12 terms of the series 12C1.+ 12C2.+ 12C3.+ .... is -...