A. 0
B. -1
C. 1
D. π /2
If Cos-1 x= Tan-1 x, then sin(Cos-1 x)=
If Tan-1 (sec x + tan x)=π/4+kx then k=
The domain of Cos-1 (2/2+sinx) in [0,2π] is
Sin-1(3/5)+Sin-1(8/17)=
If Tan-1(x+1/x-1)+Tan-1(x-1/x)+ Tan-1(1/3), then x=
Tan (tan-1 1/2+ tan-11/3) =
The range of f(x)= Sin-1x-cos-1x + Tan-1x is
If Tan-1(x-1/x-2)+ Cot-1 (x+2/x+1)=π/4, then x=
The domain of f(x)=Tan-1 √x(x+3) + sin-1√x2+3x+1 is
Sin-1(-√2/2) + Cos-1(-1/2)-Tan-1(-√3)-Cot-1(1/√3) =