Berapakah nilai (cos120+sin210)(tan120-cosec45)
Matematika
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Pertanyaan
Berapakah nilai (cos120+sin210)(tan120-cosec45)
1 Jawaban
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1. Jawaban Anonyme
Bab Trigonometri
Matematika SMA Kelas X
(cos 120° + sin 210°) . (tan 120° - cosec 45°)
= ( -1/2 + (-1/2)) . (-√3 -√2)
= -1 . (-√3 - √2)
= √3 + √2