Answer:
it is 1/2
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
7) D
8) A
9) A
10) D
11) C
12) B
Step-by-step explanation:
 
        
             
        
        
        
B. 9^2
explanation: 3^4 is equivalent to 3*3*3*3, which is 81
9^2 (9*9) also equals 81
        
             
        
        
        
A number is a solution when it fits within the range of answers that the function generates.
        
             
        
        
        
The graph looks like this, on the enclosed pic: 
One feature is that it's periodic and torn (has cut-off points), meaning the domain is the same as in case of tan(x): x€R and x =/= π/2+πn.
The range equals the range of arcsin(x): -π/2<=y<=π/2 OR y€[-π/2;π/2]
Hope could understand and if it helped! :)