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Rewrite with only sin x and cos x. Sin2x-cos2x

Rewrite with only sin x and cos x. Sin2x-cos2x
asked 80.9k views
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Rewrite with only sin x and cos x. Sin2x-cos2x

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User Genise
by
8.0k points

1 Answer

1 vote
From trig identities, we know that sin2x = 2sinxcosx and cos2x =
cos^(2) x - sin^(2) x

So sin2x-cos2x = 2sinxcosx - (
cos^(2) x - sin^(2) x) in terms of sinx and cosx
answered
User Artist
by
8.6k points
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