if `y=e^(cosx)-a^(cosx)`.Find `(dy)/(dx)=`?

If y=(1-cosx)/(1+cosx)," then: "(dy)/(dx)=

Find derivative of given functions w.r.t the respective independent variable . y=(cosx)/(x)+x/(cosx) Find (dy)/(dx) as a function of x

If y=(x)^(cosx)+(cosx)^(sinx) , find (dy)/(dx).

If y=(cosx)^((cosx)) then (dy)/(dx) is equal to :

If y=(e^(2x)cosx)/(x sinx),then(dy)/(dx) =

If y=(sinx)/(x+cosx) , then find (dy)/(dx) .

If y = x^(cosx) then find (dy)/(dx)

If y=sin(cosx^(2)), find (dy)/(dx) .

If y=x^cosx then find (dy)/(dx)

if y=(sinx+cosx)/(sinx-cosx) , then (dy)/(dx) at x=0 is equal to