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CBSE Class 10 Answered

prove that
Asked by | 06 Jun, 2008, 07:21: PM
Expert Answer

sinA - cosA/ sinA+cosA  +  sinA+cosA/ sinA+cosA = 2/1-2cos2A

 

Please check the part highlighted both numerator and denominator are same. Please check is there minus instead of positive in denominator?

Answered by | 07 Jun, 2008, 08:01: PM
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