If `y=1+(1)/(x-1)+(2x)/((x-1)(x-2))+(3x^(2))/((x-1)(x-2)(x-3))`, then the value of `-9y'(4)` is equal to

if y=(2-x)(3-x)^((1)/(2))(1+x)^(-(1)/(2)) then the value of ([(dy)/(dx)])/(y) is

If ((2x-y)/(x+2y))=(1)/(2), then find the value of ((3x-y)/(3x+y))

Let y=f (x) and x/y (dy)/(dx) =(3x ^(2)-y)/(2y-x^(2)),f(1)=1 then the possible value of 1/3 f(3) equals :

If y=f(x) satisfies the differential equation (dy)/(dx)+(2x)/(1+x^(2))y=(3x^(2))/(1+x^(2)) where f(1)=1 , then f(2) is equal to

If 3/(x+y)+2/(x-y)=2 and 9/(x+y)-4/(x-y)=1 , then what is the value of x/y ?

(x + 2) (x + 1) = (x -2) (x -3) (y+3)(y+2)=(y-1)(y-2)