# Express Each of the Following in Terms of Trigonometric Ratios of Angles Lying Between 0° and 45°. Sin67° + Cos75° - Mathematics

Sum

Express each of the following in terms of trigonometric ratios of angles lying between 0° and 45°.

sin67° + cos75°

#### Solution

$\sin67^\circ + \cos75c$
$= \cos\left( 90^\circ - 67^\circ \right) + \sin\left( 90^\circ - 75^\circ \right)$
$= \cos23^\circ + \sin15^\circ$

Concept: Trigonometric Ratios of Some Special Angles
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#### APPEARS IN

RS Aggarwal Secondary School Class 10 Maths
Chapter 7 Trigonometric Ratios of Complementary Angles
Exercises | Q 8.1 | Page 314

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