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Trigonometry > Trigonometric Identities

Double Angle Identity - Cosine




LaTeX Code:

\cos 2\theta = \cos ^2 \theta - \sin ^2 \theta = 2\cos ^2 \theta - 1


MathType 5.0 Code:


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% GHsislcaaIXaaaaa!52B0!


Pasting the above "text" into MathType 5.0 will enter the above equation and make it possible to edit, save, and use in applications such as MS Word.




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