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IgorC [24]
3 years ago
9

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

Mathematics
1 answer:
Trava [24]3 years ago
5 0

Answer:

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

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