" (ait) "(dy)/(dx)=(cos^(4)y)/(sin^(4)x+cos^(4)x)

int_(0)^(pi//2)(cos^(4)x)/((sin^(4)x+cos^(4)x))dx=(pi)/(4)

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

Solve the following differential equation 4x(dy)/(dx)=4y-x{cos((3y)/(x))+3cos((y)/(x))}

If (cos^(4)x)/(cos^(2)y)+(sin^(4)x)/(sin^(2)y)=1 , then (cos^(4)y)/(cos^(2)x)+(sin^(4)y)/(sin^(2)y) equal :

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

Solve: (i) sin^(-1)((dy)/(dx))=x+y (ii) (dy)/(dx)=cos(x+y) (iii) (dy)/(dx)=(4x+y+1)^2

Solution of differential equation sin y*(dy)/(dx)=(1)/(x)cos y=x^(4)cos^(2)y is

Find dy/dx if y= cos^4x

Find dy/dx if y= cos^4x