" 18.If "3sin(xy)+4cos(xy)=5," then "(dy)/(dx)=

xy=1," then "(dy)/(dx)

If 3sin(xy)+4tan(xy)=7," then "(dy)/(dx)=

If x+cos(xy)=0," then "(dy)/(dx)=

If sin(xy)+cos(xy)=0, then (dy)/(dx) is

If sin(xy)+cos(xy)=0, then (dy)/(dx) is

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

If 3 sin xy + 4 cos xy =5 then (dy)/(dx)=

If 3 sin (xy) + 4 cos (xy) = 5 , " then " (dy)/(dx) is equal to