The 2nd, 3rd and 4th terms in the expansion of `(x+y)^(n)` are `240, 720 and 1080` respectively, find the values of `x,y and n`.

If the 2nd, 3rd and 4th terms in the expansion of (x+a)^n are 240, 720 and 1080 respectively, find x ,\ a ,\ ndot

Find the expansion of (y+x)^n

If the secound, third and fourth terms in the expansion of (x + y )^(n) are 135 , 30 and 10/3 respectively , then

The second, third and fourth terms in the binomial expansion (x+a)^n are 240, 720 and 1080, respectively. Find x, a and n.

The number of terms in the expansion of (2x+3y-4z)^n is

If the coefficients of 2nd, 3rd and 4th terms in the expansion of (1+x)^(2n) are in A.P. Then find the value of n .

Let n be a positive integer. If the coefficients of 2nd, 3rd, 4th terms in the expansion of (1+x)^n are in A.P., then find the value of n .

Find the 3rd term the end in the expansion of (2-3x)^(8)

If the coefficients of 2nd, 3rd and 4th terms in the expansion of (1+x)^n are in A.P., then find the value of n.

If the coefficients of 2nd, 3rd and 4th terms in the expansion of (1+x)^(2n) are in A.P. then