Mathematics
Mathematics, 29.09.2019 10:50, mckenna426

Simplify the expression by using a double-angle formula or a half-angle formula.
7cos^2(theta/9)-7sin^2(theta/9)
sin(theta/6)cos(theta/6)

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Simplify the expression by using a double-angle formula or a half-angle formula.
7cos^2(theta...

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