[" 28.If "f(x)=x|x|" then "f^(-1)(x)" equals- "],[[" (A) "sqrt(|x|)," (B) "(sgn x)*sqrt(|x|)]]

Let f(x)=2x|2x| then f^(-1)(x) equals

If f(x) =|x^2-5x+6| , then f^(1)(x) equals

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

If f(x)=-(x|x|)/(1+x^(2))" then "f^(-1)x equals :

If f(x)=x tan^(-1)x, then f'(1) equals

If f(x)=(x-3)/(x+1) then fl{f(x)} equals

If f:R rarr(-1,1) is defined by f(x)=-(x|x|)/(1+x^(2)), then f^(-1)(x) equals sqrt((|x|)/(1-|x|)(b)-sgn(x)sqrt((|x|)/(1-|x|))-sqrt((x)/(1-x))(d)) none of these

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