Rewrite with only sin x and cos x

Cos 2x+sin x

Question

Mathematics

Deborah Waller

1 March, 17:24

Rewrite with only sin x and cos x

Cos 2x+sin x

+5

Answers (1)

Know the Answer?

Kamron Osborn · Answer 1

Cos 2x+sin x = cos x cos x - sin x sin x + sin x

Step-by-step explanation:

Cos 2x+sin x

use Trigonometric identities.

cos (2x) = cos (x + x) = cos x cos x - sin x sin x

Cos 2x+sin x = cos x cos x - sin x sin x + sin x

Rewrite with only sin x and cos xCos 2x+sin x

Rewrite with only sin x and cos x

Cos 2x+sin x