If `C_(0), C_(1), C_(2),…, C_(n)` denote the binomial   coefficients in the expansion of `(1 + x)^(n
Channel: Doubtnut
Date: 2020-05-24

If `C_(0), C_(1), C_(2),…, C_(n)` denote the binomial   coefficients in the expansion of `(1 + x)^(n) ,` then `sum_(r=0)^(n)sum_(s=0)^(n)(C_(r) +C_(s))`