Find the co-efficient of `x^(6)y^(3)` in `(x+2y)^(9)`

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

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

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

Find the co-efficient of y^4 in (y+c^3/y^2)^10 .

Find the sum of co-ordinates of the centre of the smallest circle touching the circles x^(2)+y^(2)-2y-3=0 and x^(2)+y^(2)-6x-18y+93=0

Find the solution of x + y = 3 and 7x + 6y = 2.