I the expansinof `(x^2+2/x)6n` for positive integer n has 13th term independent of x, then the sum of divisors of n is (A) 36 (B) 38 (C) 39 (D) 32

If the expansion of (x - (1)/(x^(2)))^(2n) contains a term independent of x, then n is a multiple of 2.

The 13^(th) term in the expanion of (x^(2)+2//x)^(n) is independent of x then the sum of the divisiors of n is

If the 5^(th ) term is the term independent of x in the expansion of (x^(2/3)+(1)/(x))^(n) then n= (A) 10 (B) 8(C) 7 (D) 12

If the n^(th) term of an A.P.is (2n+1), then the sum of its first three terms is (a) 6n+3 (b) 15 (c) 12 (d) 21

If n is positive integer, then the no. of terms in the expansion of (x+y+z)^n is

The binomial expansion of (x^(k)+(1)/(x^(2k)))^(3n), n in N contains a term independent of x

For a positive integer n, if the expanison of (5/x^(2) + x^(4)) has a term independent of x, then n can be

If the sum of the binomial coefficients in the expansion of (x+ 1/x)^n is 64, then the term independent of x is equal to (A) 10 (B) 20 (C) 30 (D) 40