Math, asked by wwwShabeebmshabi786, 1 year ago

cosA-sinA/cosA+sinA=tan(45-A)​

Answers

Answered by aishwaryar1807
2

Answer:

L.H.S : = cosA-sinA/cosA+sinA  / (cosA)

           = 1-tanA/1+tanA

             = tanA(45-A)

              = R.H.S.

       Hence proved      

Step-by-step explanation:

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