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Simplify the following without using a calculator: $\frac{ \tan{(-60^{\circ})}\cos{(-156^{\circ})}\cos{294} }    {\sin{492}}$
in Grade 12 Maths by Bronze Status (8.4k points) | 60 views

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use reduction formula and quadrant values relationships:

$=\frac{(-\tan{60} \times -\cos{24} \times \cos{66})}{ \sin{48}}$

$=\frac{(-\sqrt(3) \times -\cos{24} \times  \cos{66})}{\sin{48}}$
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