" 19.If "x in R," then "f(x)=sin^(-1)((2x)/(1+x^(2)))" is equal to "

If x in R , then f(x)=cos^(-1)((1-x^(2))/(1+x^(2))) is equal to

If x in R , then f(x)=cos^(-1)((1-x^(2))/(1+x^(2))) is equal to

If f(x)=(x-1)/(x+1) then f(2x) is equal to

If f(x)=(x-1)/(x+1) then f(2x) is equal to

If f(x)=(x-1)/(x+1) then f(2x) is equal to

If f(x) = (x-1)/(x+1) , then f(2x) is equal to

If f(x)=2tan^(-1)x+sin^(-1)((2x)/(1+x^(2))),xgt1 then f(5) is equal to

If f(x)=sin^(-1)((2xx3^(x))/(1+9^(x))), then f'(-(1)/(2)) equals

Suppose f, g, and h be three real valued function defined on R. Let f(x) = 2x + |x|, g(x) = (1)/(3)(2x-|x|) and h(x) = f(g(x)) The domain of definition of the function l (x) = sin^(-1) ( f(x) - g (x) ) is equal to

Suppose f, g, and h be three real valued function defined on R. Let f(x) = 2x + |x|, g(x) = (1)/(3)(2x-|x|) and h(x) = f(g(x)) The domain of definition of the function l (x) = sin^(-1) ( f(x) - g (x) ) is equal to