Question

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PLZ SOLVE IT
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(IF DONT KNOW NOT SOLVE)

Answer 1

$\sin(a = \sqrt{ \frac{3}{2} } ) \\ \\ \sin(60) = \sqrt{ \frac{3}{2} } \\ \\ \sin(3 \times 60) = 180 \\ \sin(180) = 0 \\ \cos(3 \times 60) = \cos(180) = - 1 \\ \tan(3a) = \frac{ \sin(3a) }{ \cos(3a) } \\ \tan(3a ) = \frac{0}{ - 1} \\ \tan(3a) = 0$

hence proved

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