NCERT Solutions for Class 10 Maths Chapter 8

Important NCERT Questions

Introduction Trigonometry

NCERT Books for Session 2022-2023

CBSE Board and UP Board Others state Board

EXERCISE 8.3

Page No:190

Questions No:7

# Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°.

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We know that sin θ = cos (90° – θ) and cos θ = sin (90° – θ)

Therefore, sin 67° + cos75° = cos (90°- 67°) + sin (90° – 75°)

= cos 23° + sin 15°

Explanation video🙌😀