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Q. The term independent of x in the expansion of $\left(1+X\right)^{10} \left(1+\frac{1}{X}\right)^{10} $ is

Binomial Theorem

Solution:

$\frac{\left(1+x\right)^{20}}{x^{10}} \Rightarrow $ independent term is $^{20}C_{10} $