Find the derivative of the following functions (it is to be understand that a,b,c,d,p,q,r and s are fixed non-zero constants and m and n are integers): `(4x+5sinx)/(3x+7cos x)`

Find the derivative of the following functions (it is to be understand

1.	Find the derivative of the following functions (it is to be understand that a,b,c,d,p,q,r and s are fixed non-zero constants and m and n are integers): `(4x+5sinx)/(3x+7cos x)`
Answer» Let `y=(4x+5 sinx)/(3x+7cos x)` `rArr(dy)/(dx)=(d)/(dx)[((4x+5sinx)/(3x+7cos x)]` `(3x+7cos x)(d)/(dx)(4x+5 sinx)` `=(-(4x+5sinx)(d)/(dx)(3x+7cos x))/((3x+7 cos x)^(2))` `(12x+15x cos x+28 cos x+35cos^(2)x)` `=(-(12x-28xsinx+15sinx-35sin^(2)x)+28x sin x-15 sin x)/((3x+7 cos x)^(2))` `15x cos x +28 cos x +35` `=(15x cos x+28 cos x+35+28xsinx-15sinx)/((3x+7cos x)^(2))`