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Prove that:-cosecA + 1 ÷ cosecA - 1 = sec A + tan A |
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Answer» Step-by-step EXPLANATION: ( cosecA +1)/(COSEC A - 1) = (secA+tanA)^2 L.H.S. =( 1/sinA +1)/( 1/sinA - 1) =(1+sinA) /(1-sinA). =(1+sinA)×(1+sinA)/(1-sinA)×(1+sinA) =(1+sinA)^2/(1-sin^2A) =(1+sinA)^2/cos^2A. =(1/cosA+sinA/cosA)^2 =(secA+tanA)^2 ,proved. Hope U understand mark me as BRAINLEAST |
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