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HehCnorsshell
HehCnorsshell HehCnorsshell
  • 09-12-2016
  • Mathematics
Answered

Rewrite with only sin x and cos x.


cos 3x



cos x - 4 cos x sin2x


-sin3x + 2 sin x cos x


-sin2x + 2 sin x cos x


2 sin2x cos x - 2 sin x cos x

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Nirina7
Nirina7 Nirina7
  • 09-12-2016

this may help you, check the attached file

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