1.

The term independent of x in the expansion of (1 + x)^n (1 + 1/x)^n is

Answer»

`C_0^2 + C_1^2 + C_2^2 + ……….+C_n^2`
`""^(2N)C_n`
`(1.3.5…..(2n - 1))/(N!) 2^n`
All of the above

Answer :B


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