nilai 8 ( sin 5/12 pi sin 1/12 pi + cos 5/12 pi cos 1/12 pi ) adalah
Matematika
fernandodewata3549
Pertanyaan
nilai 8 ( sin 5/12 pi sin 1/12 pi + cos 5/12 pi cos 1/12 pi ) adalah
1 Jawaban
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1. Jawaban nabnabs
[tex]8(\cos{\frac{5\pi}{12}}\cos{\frac{\pi}{12}}+\sin{\frac{5\pi}{12}}\sin{\frac{\pi}{12}}=8(\cos{\frac{5\pi}{12}-\frac{\pi}{12}})=8\cos{\frac{\pi}{3}}=4[/tex]