engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Binomial Theorem Summation of Combination Terms
What is \(\mathop \sum \limits_{{\rm{r\;}} = {\rm{\;}}0}^1 {{\rm{\;}}^{{\rm{n}} + {\rm{r}}}}{{\rm{C}}_{\rm{ n}}}\) equal to?
1
n + 2C1
2
n + 2Cn
3
n + 3Cn
4
n + 2Cn - 1