Jee Main
Binomial Theorem
JEE Main 2022 (Online) 26th July Evening Shift
MCQ+4 / -12022
\(\sum\limits_{\matrix{ {i,j = 0} \cr {i \ne j} \cr } }^n {{}^n{C_i}\,{}^n{C_j}}\) is equal to
Jee Main
JEE Main 2022 (Online) 26th July Evening Shift
\(\sum\limits_{\matrix{ {i,j = 0} \cr {i \ne j} \cr } }^n {{}^n{C_i}\,{}^n{C_j}}\) is equal to