If `y=sin^-1[(1-x)/(1+x)]` , then`dy/dx=`

If y=sin^-1((1-x^2)/(1+x^2)) ,then dy/dx

If y=sin^-1(2^(x+1)/(1+4^x)) , then dy/dx=

If y=sin^(-1)((1-x^2)/(1+x^2)) , then (dy)/(dx)= (a) -2/(1+x^2) (b) 2/(1+x^2) (c) 1/(2-x^2) (d) 2/(2-x^2)

If y= sin ^-1\ (1)/(sqrt(1+x^2)) then dy/dx at x =0 is :

If y=sin^(-1)(sin x), then dy/dx at x =pi/2 is

If y=tan^(-1)((1-x)/(1+x)) , find (dy)/(dx) .

If y=sin^(-1)((2x)/(1+x^2)), then find (dy)/(dx)

If y=sin^(-1)((2x)/(1+x^2)), then find (dy)/(dx)

If y=(1+x)^y+sin^-1(sin^2x) , then (dy)/(dx) at x = 0 is

If y=sin^(-1)(x/2)+cos^(-1)(x/2) then (dy)/(dx)=