By definition, we have to:
 In mathematics, the commutative property or commutativity is a fundamental property that has some operations according to which the result of operating two elements does not depend on the order in which they are taken.
 This is fulfilled in ordinary addition and multiplication: the order of the addends does not alter the sum, or the order of the factors does not alter the product.
 We have then, that the commutative property of the addition is:
 3 + (-7) = (-7) + 3
 Answer:
 An expression that illustrates the commutative property of addition is:
 3 + (-7) = (-7) + 3
        
                    
             
        
        
        
 domain of the problem is -5 and the range is 4
        
                    
             
        
        
        
That would be tan
(1-cos)(1+cos)=1-cos² which equals to sin²
√sin²/cos²= sin/cos which equals to tan
        
             
        
        
        
Answer:
Step-by-step explanation: 
I’m in middle school
 
        
             
        
        
        
Answer:
It's actually C
Step-by-step explanation:
don't forget about the probability of 0 too 
you have to add the two probability formulas