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Sreetama Chanda
Answers (3)
And one more thing , in the second line it will be: SinA(1+cosA)/1-cos^2A Sorry for the mistakes guys 😢
In my previous response , where I said the sure method ... It will be surd method , it got autocorrected 🤣
LHS: SinA/(1-cosA) X 1+cosA/1+cosA ( applying the sure method , i.e rationalising) SinA(1+cosA)/1XCos^2A SinA(1+cosA)/sin^2A SinA+sinACosA/Sin^2A SinA/Sin^2A + SinA+CosA/Sin^A CosecA+CotA =RHS (proved) Reminder: ^ symbol means to the power
