If in the expansion of `(1+x)^n` the coefficients of 14th, 15th and 16th terms are in A.P. then n=` (A) 12 (B) 23 (C) 27 (D) 34

If in the binomial expansion of (1+x)^(n) ,the coefficient of 14th,15th and 16th terms are in A.P.,then find n.

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

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

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

In the expansion of (1+x)^(n) the coefficient of p^(th) and (p+1)^(th) terms are respectively p and q.Then p+q=

In a binomial expansion (1 + x)^n is a positive integer, the coefficients of 5th, 6th and 7th terms are in A.P., then the value of n is :

If coefficient of 9th, 10th and 11th terms of (1+x)^(n) are in A.P., then the value of n can be

If the coefficients of 3rd, 4th , 5th terms in (1+x)^(2n) are A.P. then 4n^2 -26n + 40 =