Asked by Anonymous
                Prove that the equation is an identity.
sec x/(sec x -tan x)=sec^2 x +sec x tan x
            
        sec x/(sec x -tan x)=sec^2 x +sec x tan x
Answers
                    Answered by
            Steve
            
    multiply top and bottom by sec+tan and recall that
sec^2-tan^2 = 1
    
sec^2-tan^2 = 1
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