Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: sin65° + cot59° - Mathematics

Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: sin65° + cot59°

Sum

sin65° + cot59°
= sin(90° - 25°) + cot(90° - 31°)
= cos25° + tan31°.

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Chapter 27: Trigonometrical Ratios of Standard Angles - Exercise 27.3

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