If the constant term in the binomial expansion of `(x^2-1/x)^n ,n in N` is 15, then the value of `n` is equal to.

If the constant term of the binomial expansion (2x-(1)/(x))^(n) is -160, then n is equal to -

n th term in the expansion of (x+(1)/(x))^(2n)

The fourth term in the binomial expansion of (x^2 - (1)/(x^3) )^n is independent of x , when n is equal to

If the ratio of the coefficient of third and fourth term in the expansion of (x-(1)/(2x))^(n) is 1:2, then the value of n will be

If the middle term in the expansion of (x^(2)+1/x)^(n) is 924x^(6), then find the value of n .

If the number of terms in the expansion of (1+x)^(101)(1+x^(2)-x)^(100) is n, then the value of (n)/(25) is euqal to

If the coefficients of the three successive terms in the binomial expansion of (1+x)^(n) are in the ratio 1:4.42 then the first of these terms in the expansion is