Answer:
24
Step-by-step explanation:
trust meee
 
        
             
        
        
        
Cos (x+y)/cos x sin y    
= cos x cos y - sin x sin y  / cos x sin y
= cos x cos y/cos x sin y     - sin x sin y / cos x sin y
hope this helps
        
                    
             
        
        
        
Answer:

Step-by-step explanation:

Divide 3 on both sides of the equation.


 
        
                    
             
        
        
        
(-2, -9)
Simply plug -2 into the equation. 
        
             
        
        
        
Answer:
4/25
Step-by-step explanation: