" (6) "cos^(-1)(x-x^(-1))/(x+x^(-1))" ."quad (x=cot theta" रखिए) "

sin^(-1)(sin x)=x;cos^(-1)(cos x)=x;tan^(-1)(tan x)=x;cot^(-1)(cot x)=x;sec^(-1)(sec x)=x;cos ec^(-1)(cos ecx)

The value of 2tan^(-1)(cos ec tan^(-1)x-tan cot^(-1)x) is equal to (a)cot ^(-1)x( b ) (cot^(-1)1)/(x) (c)tan ^(-1)x (d) none of these

Solve: "cot"^(-1) 1/(x-1) + "cot"^(-1) 1/x +"cot"^(-1) 1/(x+1) = "cot"^-1 1/(3x)

If f(x)=(1-x)/(1+x), find f(cos theta)

If f(x) =(1-x)/(1+x) then f(cos theta) is

Domain of f(x)=cos^(-1)x+cot^(-1)x+cosec^(-1)x is

Domain of f(x)=cos^(-1)x+cot^(-1)x+cosec^(-1)x is

Range of f(x)=sin^(-1)x+cos^(-1)x+cot^(-1)x