Trigonometryhard · Past Paper
Find the value of (sec A + tan A)(1 - sin A).
Asin A
Bcos A
Csec A
Dcosec A
✓ Correct Answer: B — cos A
(1/cos + sin/cos)(1-sin) = (1+sin)(1-sin)/cos = (1-sin²)/cos = cos²/cos = cos A.
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