Sin 120° + cos 210° - tan 225° =
Matematika
bagusnopria
Pertanyaan
Sin 120° + cos 210° - tan 225° =
1 Jawaban
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1. Jawaban Anonyme
Sin120°+Cos210°-tan225°=
{180°-120°}+{210°-180°}-{225°-180°}
60°+(-30°) -45
{1/2√3+(-1/2)} -1
4√3-1
3√3
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