Nilai sin 124 + sin 4 per cos 124 - cos 4
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Pertanyaan
Nilai sin 124 + sin 4 per cos 124 - cos 4
1 Jawaban
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1. Jawaban Anggress1
sin124 + sin4 / co124 - cos4
= 2 sin64 cos60 / -2 sin64 sin60
= - cos60 / sin60
= -1/2 / 1/2√3
= -1/3 √3