Asked by jess
                The expression a/a-b + b/b-a is equivalent to 
a) 1
b)-1
c) ab/a-b
d)a+b/a^2-b^2
please help!
            
            
        a) 1
b)-1
c) ab/a-b
d)a+b/a^2-b^2
please help!
Answers
                    Answered by
            Damon
            
    I bet you mean
a/(a-b) + b/(b-a)
a/(a-b) - b/(a-b)
(a-b)/(a-b)
1
    
a/(a-b) + b/(b-a)
a/(a-b) - b/(a-b)
(a-b)/(a-b)
1
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