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Prove that sinA -cosA+1/sinA+cosA-1=1+sinA/cosA |
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Answer» -STEP EXPLANATION:L.H.S.1+sinAcosA + cosA1+sinA = cosA(1+sinA)COS 2 A+(1+sinA) 2 = cosA(1+sinA)cos 2 A+1+sin 2 A+2sinA = cosA(1+sinA)2+2sinA = cosA2 =2secA = |
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