Question Text
Question 1 :
If the sum of binomial coefficient in the expansion $(1+x)^{n}$ is $256$, then $n$ is
Question 2 :
If $\displaystyle C_{0},C_{1},C_{2},....C_{n}$ are binomial coefficient in the expansion of $\displaystyle (1+x)^{n}$, then value of $\displaystyle C_{1}+C_{4}+C_{7}+...$ equals<br>
Question 3 :
$\begin{array} { l } { \text { Assertion } ( \mathrm { A } ) : \text { The expansion of } ( 1 + x ) ^ { n } = } \\ { C _ { 0 } + C _ { 1 } x + C _ { 2 } x ^ { 2 } + \ldots + C _ { n } x ^ { n } } \\ { \text { Reason (R): If } x = - 1 , \text { then the above expansion is } } \\ { \text { zero } } \end{array}$
