Mark the correct alternative in the following :
The coefficient of in the expansion of is.

Given:

For x^-1;

⇒k-n=-1

⇒k=n-1

So, coefficient

Question

Mark the correct alternative in the following : The coefficient of in the expansion of is.

Philoid · Accepted Answer

Given:

For x^-1;

⇒k-n=-1

⇒k=n-1

So, coefficient