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Sines And Cosines Are Better

Geometry Level 2

$\large \dfrac { \tan^2 \theta - 1 }{ \tan^2 \theta + 1 } = \, ?$

Check out the set: 2016 Problems

\cos ^{ 2 }{ \theta }

-1

\sin ^{ 2 }{ \theta }

1 - 2\cos ^{ 2 }{ \theta }

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by Angela Fajardo

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