Trigonometryeasy · Past Paper
Which expression is equal to cos(90° - θ)?
Asin θ
B-sin θ
Ccos θ
Dtan θ
✓ Correct Answer: A — sin θ
Using complementary angle identities, the cosine of an angle is the sine of its complement.
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✓ Correct Answer: A — sin θ
Using complementary angle identities, the cosine of an angle is the sine of its complement.
Share this question