Q8 of 51 Page 18

Mark the correct alternative in the following :
In the expansion of , the term without x is equal to

Given:

⇒ x^{2(9 – k)-k} = x⁰

⇒18-2k-k = 0

⇒18-3k = 0

⇒k = 6

Mark the correct alternative in the following :

The number of irrational terms in the expansion of is

Mark the correct alternative in the following :

The coefficient of x^-17 in the expansion of is

Mark the correct alternative in the following :

If in the expansion of , the coefficients of and terms are equal, then the value of r is

Mark the correct alternative in the following :

The middle term in the expansion of is

Mark the correct alternative in the following :In the expansion of , the term without x is equal to