The coefficient of `x^(8)y^(12)` in the expansion of `(2x+3y)^(20)` is

The coefficient of x^(2)y^(3) in the expansion of (1-x+y)^(20) is (20!)/(213!) b.-(20!)/(213!) c.(20!)/(5!2!3!)d .none of these

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

The coeficient of (x^(7)y^(3)) in the expansion of (x-y)^(10)- the coefficient of (x^(3)y^(7)) in the expansion of (x-y)^(10) is ………

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

Find the coefficient of x^(6).y^(3) in the expansion of (2x+y)^(9)

Find the coefficient of x^(6).y^(3) in the expansion of (2x+y)^(9)

Find the coefficient of x^(6)y^(3) in the expansion of (x+2y)^(9)

Find the coefficient of x^(6)y^(3) in the expansion of (x+2y)^(9)

The coefficient of x^(8) in the expansion of e^(3x) is