(sec A+tan A) (1 - sin A) =
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cos A
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(secA+tanA) (1+sinA)
(1/cosA+ sinA/cosA) (1+sinA)
(1+ sinA/cosA) (1+sinA)
1+sinA+cosA+sinAcosA/ cosA
secA+tanA+sinA
u can change it to the answer
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