(secA+tanA) (1-sinA)=
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Step-by-step explanation:
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Answer is cosA
Step-by-step explanation:
(1/cosA + sinA/cosA)(1-sinA)
((1+sinA)/cosA)(1-sinA)
((1+sinA)(1-sinA))/cosA
(1-sin²A)/cosA
(cos²A)/cosA
cosA
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