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3 October, 05:55

Rewrite with only sin x and cos x

Cos 2x+sin x

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  1. 3 October, 06:23
    0
    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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