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Prove that s e cA(1-sinA)(s e cA+t a nA)...

Prove that `s e cA(1-sinA)(s e cA+t a nA)=1`

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To prove the identity \( \sec A (1 - \sin A)(\sec A + \tan A) = 1 \), we will start with the left-hand side (LHS) and simplify it step by step. ### Step-by-Step Solution: 1. **Write down the LHS**: \[ \text{LHS} = \sec A (1 - \sin A)(\sec A + \tan A) \] ...
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