Evaluate the following: cos 34 ° cos 35 ° sin 57 ° sin 56 °

Evaluate the following: `(cos34° cos35°)/(sin57° sin56°)`

Sum

`(cos34° cos35°)/(sin57° sin56°)`

= `(cos(90° - 56°) cos(90° - 57°))/(sin57° sin56°)`

= `(sin56° sin57°)/(sin57° sin56°)`
= 1.

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Trigonometric Equation Problem and Solution

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Chapter 27: Trigonometrical Ratios of Standard Angles - Exercise 27.3

Chapter 27 Trigonometrical Ratios of Standard Angles
Exercise 27.3 | Q 1.6

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