Evaluate : Cos 22 ° Sin 68 ° - Mathematics

Evaluate : `(cos22°)/(sin 68°)`

Sum

`(cos22°)/(sin 68°)`

= `cos(90° - 68°)/(sin68°)`

= `(sin 68°)/(sin68°)`

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Complementary Angles for Sine ( Sin ) and Cosine ( Cos )

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Chapter 25: Complementary Angles - Exercise 25 [Page 310]

Chapter 25 Complementary Angles
Exercise 25 | Q 1.1 | Page 310

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