3cos(3x+4)-4sin(4x+5)

If 3sin(x y)+4cos(x y)=5,t h e n(dy)/(dx)= (a) -y/x (b) (3sin(x y)+4cos(x y))/(3cos(x y)-4sin(x y)) (c) (3cos(x y)+4sin(x y))/(4cos(x y)-3sin(x y)) (d) (sin^2(a+y))/(sina)

If 3sin(x y)+4cos(x y)=5 , then (dy)/(dx)= (a) y/x (b) (3sin(x y)+4cos(x y))/(3cos(x y)-4sin(x y)) (c) (3cos(x y)+4sin(x y))/(4cos(x y)-3sin(x y)) (d) none

If 3sin(xy)+4cos(xy)=5, then (dy)/(dx)=(y)/(x) (b) (3sin(xy)+4cos(xy))/(3cos(xy)-4sin(xy))(c)(3cos(xy)+4sin(xy))/(4cos(xy)-3sin(xy))(d) none

The period of (cos(3x+4)+tan(5x+7))/(cos ec(3+4x)-sin(4-6x)) is

Prove that (cos(4x)+cos(3x)+cos(2x))/(sin(4x)+sin(3x)+sin(2x))=cot(3x)

If 3sin x+4 cos x=2, then the value of 3 cos x -4 sin x is equal to:

3cos x+4sin x=5

sin4x=4sin x cos^(3)x-4cos x sin^(3)x

If int(3cos x-2sin x)/(4sin x+5cos x)dx=Ax+B log|5cos x+4sin x| then (A,B)=