(sec A + tan A) (1 - sin A) =
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answer is A- is the answer please mark me as beainlist answer
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Step-by-step explanation:
(SecA + TanA) ( 1 - SinA)
=> (1 / CosA + SinA/CosA)( 1 - SinA)
=> [(1 + SinA)/CosA] (1 - SinA)
=> 1 - Sin²A / CosA (∵ 1 - Sin²A = Cos²A)
=> Cos²A/CosA
=> CosA
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