sin 150° × tan 120°
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Penjelasan dengan langkah-langkah:
[tex] \sin( {150}^{o} ) = \frac{1}{2} \\ \tan( {120}^{o} ) = - \sqrt{3} \\ \\ \\ \frac{1}{2} \times ( - \sqrt{3} ) = - \frac{1}{2} \times \sqrt{3} = - \frac{ \sqrt{3} }{2} [/tex]
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