The coefficient of `x^2y^4z^2` in the expansion of `(2x - 3y + 4z)^9` is

The coefficient of x^2 y^5 z^3 in the expansion of (2x + y + 3z)^10 is

The coefficient of x^(8) y^(6) z^(4) in the expansion of (x + y + z)^(18) , is not equal to

Find the coefficient of x^2 y^3 z^4 in the expansion of (ax -by +cz)^9 (b) a^2 b^3 c^4 d in the expansion of (a -b-c +d)^10

Find the coefficient of x^3y^4z^5 in the expansion of (xy+yz+zx)^6

Find the coffiecient of x^2 y^3 z^4 w in the expansion of (x-y-z+w)^(10)

The coefficient of x^2y^3z^4 in (2x + y - z)^9 is

The total number of terms in the expansion of (2x - y + 4z)^(12) ,is

The number of terms in the expansion of (2x+3y-4z)^n is

Expand: (2x + 3y - 4z)^(2)

If the number of terms in the expansion (1+2x-3y+4z)^(n) is 286 , then find the coefficient of term containing xyz .