Trigonometryhard · Past Paper
Find the value of sqrt((1 + sin A) / (1 - sin A)).
Asec A - tan A
Bsec A + tan A
Ccos A + sin A
Dsec^2 A
✓ Correct Answer: B — sec A + tan A
Multiply numerator and denominator by (1+sin A): sqrt((1+sin)^2 / cos^2) = (1+sin)/cos = sec A + tan A.
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