Sin240° x cos135° x tan 135°
Matematika
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Pertanyaan
Sin240° x cos135° x tan 135°
1 Jawaban
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1. Jawaban ryantian17
Sin240° x cos135° x tan 135°
= Sin (180° +60°) × cos (180°-45) × tan (180°-45°)
= - sin 60° × -cos 45° × -tan 45°
= -½√3 × -½√2 × -1
= -¼√ 6