If `y=log_(cosx)sinx,` then `(dy)/(dx)` is equal to

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

If y=tan^(-1)(( sin x + cosx)/(cosx-sinx)) then (dy)/(dx) is equal to

If y=tan^(-1)((sinx+cosx)/(cosx-sinx)) , then (dy)/(dx) is equal to (a) 1/2 (b) 0 (c) 1 (d) none of these

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

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

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

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

If y=sinx and u=cosx, then (dy)/(du) is equal to

If y=sinx/(1+cosx) then (dy)/(dx)=