If the coefficients of the 6th and 5th terms of expansion `(1+x)^(n)` are in the ratio `7:5`, then find the value of n.

If the coefficients of 5th, 6th , and 7th terms in the expansion of (1+x)^n are in A.P., then n=

If the coefficients of 5^(t h) , 6^(th) and 7^(th) terms of (1+x)^(n) are in arithmetic progression, then the value of n is

The coefficients of 5th ,6th and 7th terms in the expansion of (1+x)^(n) are A.P . ,find n .

If the coefficients of 5^(th), 6^(th) and 7^(th) terms in the expansion of (1+x)^(n) are in A.P. then n =

What is the coefficient of 5th, 6th and 7th terms in the expansion of (1+x)^n ?

The coefficient of 5th, 6th and 7th terms in the expansion of (1+x)^n are in A.P. Find the value of n.

If the coefficients of 5th, 6th, 7th terms of (1+x)^n are in A.P. then n=

The coefficient of the (r-1) th,rth and (r+1) th terms in the expansion of (x+1)^(n) are in the ratio 1:3:5. Find both n and r

If the coefficients of r^(th) and (r+1)^(th) term in the expansion of (1+x)^(n) are equal then n=

If the coefficients of (r-5)^(th) and (2r-1)^(th) terms of the expansion (1+x)^(34) are equal, find r.