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defon
3 years ago
8

Rewrite with only sin x and cos x. sin 2x - cos 2x

Mathematics
2 answers:
Ymorist [56]3 years ago
4 0
Sin2x = 2sinxcosx
cos2x = (cosx)^2 - (sinx)^2 = 2(cosx)^2 -1 = 1- 2(sinx)^2

Any combination you want is here.
RoseWind [281]3 years ago
3 0
Sin2x-cos2x
2sinxcosx-2cos^2x-1
2cos^2x+2sinxcosx-1
I think that's how you do this one.
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