Prove- 1- cos2A1-SinA- SinA-

1 (cos^2A1+sinA) =1 (1 sin^2A1+sinA) =1 (1 sinA)(1+sinA)1+sinA =1 (1 sinA) =sinA ...

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Trigonometric Identities

Prove: 1- c...

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Prove: $1 - \frac{c o s^{2} A}{1 + S i n A} = S i n A .$

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