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

asked Nov 10, 2021 66.9k views

4 votes

Rewrite with only sin x and cos x

Cos 2x*l+sin x

by Lony

5.2k points

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3 votes

Answer:

sin(2x) = 2sinxcosx

cos(2x) = cos2x - sin2x

sin(2x) - cos(2x) = 2 sinx cosx - (cos2x - sin2x)

sin(2x) - cos(2x) = 2 sinx cosx -cos2x + sin2x

Nebril answered Nov 17, 2021

5.7k points

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