Advertisements
Advertisements
प्रश्न
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: cos72° - cos88°
बेरीज
Advertisements
उत्तर
cos72° - cos88°
= cos(90° - 18°) - cos(90° - 2°)
= sin18° - sin2°.
shaalaa.com
Trigonometric Equation Problem and Solution
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
