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

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)

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

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

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

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

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

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

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