3 tan 225 ° - cos 240° + 6 sin 315°
Matematika
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Pertanyaan
3 tan 225 ° - cos 240° + 6 sin 315°
1 Jawaban
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1. Jawaban Vitruviuz
Tan 225 = -1
Cos 240 = -1/2
Sin 315 = -1/2√2
3 tan 225 - cos 240 + 6 sin 315
3 (-1) - (-1/2) + 6 (-1/2 √2)
-3 + 1/2 - 3√2
-6/2 + 1/2 - 3√2
-5/2 - 3√2
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