jozephavila
jozephavila jozephavila
  • 14-02-2017
  • Mathematics
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What is csc(2alpha)!?!?!?

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jdoe0001 jdoe0001
  • 14-02-2017
[tex]\bf \textit{Double Angle Identities} \\ \quad \\ sin(2\alpha)=2sin(\alpha)cos(\alpha) \\ \quad \\ \boxed{cos(2\alpha)= \begin{cases} cos^2(\alpha)-sin^2(\alpha)\\ 1-2sin^2(\alpha)\\ 2cos^2(\alpha)-1 \end{cases}} \\ \quad \\ tan(2\alpha)=\cfrac{2tan(\alpha)}{1-tan^2(\alpha)}[/tex]
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