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Simplification
(secA - 1)/(secA + 1) is equal to?
(1 - sinA)/(1 + sinA)
(1 + cosA)/(1 - cosA)
(1 + sinA)/(1 - sinA)
(1 - cosA)/(1 + cosA)
Correct Answer:
(1 - cosA)/(1 + cosA)
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