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Rewrite with only sinx and cosx. cos2x-sinx

Mathematics
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are you familiar with double angle formulae ?
yes. I know that cos2x would be cos^2x-sin^2x
I think thats what you have to substitute only.

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Other answers:

Just substitute and you are done :)
so would it be cos^2x-sin^2-sinx?
yep
according to me yes infact there can be more than 1 answers to it
would it be possible for it to be cos^2x-sin^3x?
nope?
ok. thanks!
yw :)

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