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 =

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

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

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

(i) What is the second term in the expansion of (1 + x)^(n) ? (ii) Write the 3^(rd) and 4^(th) terms in the expansion of (1 + x)^(n) . (iii) If the coefficients of 2^(nd) , 3^(rd) and 4^(th) terms in the expansion of (1 + x)^(n) are in A.P, then show that n^(2) - 9n + 14 = 0 .

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

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