Q. 334.5( 2 Votes )

Show that the expansion of does not contain any term involving x-1.

Answer :

For ,

a=x2, and n=12

We have a formula,

To get coefficient of x-1 we must have,

(x)24-3r = (x)-1

• 24 - 3r = -1

• 3r = 25

• r = 8.3333

As is not possible

Therefore, the term containing x-1 does not exist in the expansion of

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.