The coefficient of `x^(-17)` in the expansion of `(x^4-1/x^3)^(15)` is

The coefficient of x^(32) in the expansion of (x^(4)-(1)/(x^(3)))^(15) is

Find the coefficient of x^-17 in the expansion of (x^4 - (1/x^3))^15

Find the coefficient of 1/(x^(17)) in the expansion (x^(4)-1/(x^(3)))^(15)

The coefficient of x^(17) in the expansion of (x-1)(x-2)……..(x-18) is

The coefficient of x^(4) in the expansion of (1-x)^(-2) is

Suppose a in R . If the coefficient of x^(5) in the expansion of (ax+1/(x^(3)))^(17) is 680, then a is equal to