If the 4th term in the expansion of (px+...

If the 4th term in the expansion of `(px+1/x)^n`, `n in N` is `5/2` and three normals to the parabola `y^2=x` are drawn through a point (q,0) , then

A

`9/2`

B

`(11)/(2)`

C

`(13)/(2)`

D

`(15)/(2)`

Verified by Experts

The correct Answer is:

c

Similar Questions

Explore conceptually related problems

Find the 4^th term in the expansion of (x-2y)^12 .

If the fourth term in the expansion of (px+1/x)^n is 5/2 , then (n,p)=

Find the r^th term from the end in the expansion of (x + a)^n .

The number of terms in the expansion of (x+y+z)^(n)……….

Find the middle term in expansion of : (1-2x+x^(2))^(n)

Middle term in the expansion (x+(1)/(x))^(2n) is ........... .

Find the equation of the normal to the parabola y^2=4x which is parallel to the line y=2x-5.

If 5^(th),6^(th) and 7^(th) terms in the expansion of (1+y)^(n) are in A.P . Then the value of n is ………..

Let P , Q and R are three co-normal points on the parabola y^2=4ax . Then the correct statement(s) is /at

Find the equation of the normal to the parabola y^2=4x which is perpendicular to the line 2x+6y+5=0.