Trigonometryeasy · Past Paper
Simplify: (1 - sin^2(theta)) * sec^2(theta)
Asin^2(theta)
Bcos^2(theta)
C1
D0
✓ Correct Answer: C — 1
1 - sin^2(theta) = cos^2(theta), and cos^2(theta) * sec^2(theta) = 1.
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