Evaluate without using tables: [2cos60°-2sin30°-tan45°cos0°][cos45°cosec 30°sec60°sin90°] - Mathematics | Shaalaa.com

A diagram shows a rectangular structure with points A, B, and C labeled at the corners. A diagonal brace connects points A and B. An angle of 60° is marked near point A. A vertical line segment from B to C is labeled as 9 feet.

Ex 8.2, 1 Class 10 - Evaluate (i) sin 60° cos 30° + sin 30° cos 60°

Writing the Equation of a Cosine Function Given its Graph | Trigonometry | Study.com

How to Graph Cosine Functions | Algebra | Study.com

Period of a Cosine Function | Graph & Equation