tan 60° x sin 120° + cos 135° x tan 45°
Matematika
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Pertanyaan
tan 60° x sin 120° + cos 135° x tan 45°
1 Jawaban
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1. Jawaban pokemonduel
tan(60)×sin(120)+cos(135)×tan(45)
=√3×sin(180-60)+cos(180-45)×sin(45)/cos(45)
=√3×sin(60)+(-1)×cos(45)×sin(45)/cos(45)
=√3×√3/2-sin(45)
=3/2-√2/2
=(3-√2)/2