If in the expansion of `(1+x)^m (1-x)^n`, the coefficients of `x and x^2` are 3 and -6 respectively, then m is:

if in the expansion of (1+x)^m (1-x)^n the cofficients of x and x^2 are 3 and -6 respectively then m is

If in the expansion of (1 +x)^(m) (1 - x)^(n) , the coefficients of x and x^(2) are 3 and - 6 respectively, the value of m and n are

If in the expansion f (1+x)^m(1-x)^n, the coefficient of x and x^2 are 3 and -6 respectively then (A) m=9 (B) n=12 (C) m=12 (D) n=9

If in the expansion of (1+x)^m(1-x)^n the coefficients of x and x^2 and 3 and -6 respectivly then m is (A) 6 (B) 9 (C) 12 (D) 24

If in the expansion of (1 + ax)^(n),n in N, the coefficient of x and x^(2) are 8 and 24 respectively, then

In the expansion of (1+x+x^(2)+...oo)^(3) the coefficient of x^(n) is

In the expansion of 2 log_(n) x- log_(n) (x+1) - log_(e)(x-1), the coefficient of x^(-4) is

If sum of the coefficients in the expansion of (x+1/x)^(n) is 128, then coefficient of x in the expansion of (x+1/x)^(n) is