" If "y=sin^(4)x+cos^(4)x," then "(dy)/(dx)=

If y=sin^(-1)(3x-4x^(3)), then (dy)/(dx)=

If y= sin (cos (tan x)) ,then (dy)/(dx) =

If y=sin ^(-1) (4x^(3) -3x) ,then ( dy)/(dx) =

if y=(sin x)^(cos x). Then (dy)/(dx)=

If x=a cos^(4)t, y=b sin^(4)t then (dy)/(dx) at t = (3 pi)/(4) is

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 y=|cos^(3)x|+|sin^(3)x| then (dy)/(dx) at x=(3 pi)/(4)

If y = sin^(-1) (3x -4x^(3)) " then " (dy)/(dx) = ?

If x sin y = 3 sin y + 4 cos y , then (dy)/(dx) =