The coefficient of y in the expansion of `(y^(2) + c//y)^(5)` is

The coefficient of y^(7) in the expansion of (y+z)^(7) is ____________

The coefficient of x^(8)y^(10) in the expansion of (x+y)^(18) is ^(18)C_(8) b.^(18)P_(10) c.2^(18) d.none of these

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

If the sum of the coefficient in the expansion of (alpha x^(2) - 2x + 1)^(35) is equal to the sum of the coefficient of the expansion of (x - alpha y)^(35) , then alpha =

Write the coefficient of x^(7) y^(2) in the expansion of (x+2y)^(9) .

Find the coefficient of x^(2).y^(7) in the expansion of (x+2y)^(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)

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