Trigonometrymedium · Past Paper
The expression (1 + tan^2(A))(1 - sin^2(A)) is equal to:
A0
B1
Ctan^2(A)
Dcos^2(A)
✓ Correct Answer: B — 1
sec^2(A) * cos^2(A) = 1.
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✓ Correct Answer: B — 1
sec^2(A) * cos^2(A) = 1.
Share this question