1 


2 
The graph of y = cos<sup>1</sup> x is obtained by reflecting the graph of y = cos x about: 
 A. xaxis
 B. yaxis
 C. y = x
 D. y = x

3 
tan<sup>1</sup>(√3) is: 

4 
The domain of principal cosine function is: 

5 
If x is positive or zero, then the principal value of any inverse function of x, if it exists lies in the interval: 

6 
The domain of y = sin<sup>1</sup> x is: 

7 
The range of y = cos<sup>1</sup> x function is: 

8 
tan(π + cot<sup>1</sup>x ) = 

9 
Inverse sine function is written as: 
 A. (sin x)<sup>1</sup>
 B. sin x<sup>1</sup>
 C. arc sinx
 D. arc sin<sup>1</sup> x

10 
y = tan1 x if and only if x = tan y, where: 
 A. 1 < x < 1 and  π < y < π
 B.
 C.
 D.
