Tan (-45°)+sin120°+cos225-cos330°
Matematika
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Pertanyaan
Tan (-45°)+sin120°+cos225-cos330°
1 Jawaban
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1. Jawaban Anonyme
Kelas 10 Matematika
Bab Trigonometri
Tan (-45°) + sin 120° + cos 225° - cos 330°
= - 1 + 1/2 √3 + (-1/2 √2) - 1/2 √3
= -1 - 1/2 √2
= (-2 - √2)/2