Angles and are complementary

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Angles PP and QQ are complementary. Which of the following relations is correct? (a) tan⁡P=tan⁡Q\tan P = \tan Q (b) cos⁡P=tan⁡Q\cos P = \tan Q (c) sin⁡P=cos⁡Q\sin P = \cos Q (d) cos⁡P=cos⁡Q\cos P = \cos Q

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