sin 30+cos 30 ____________ Sin 60+sin 45
Matematika
mandilikaKri
Pertanyaan
sin 30+cos 30 ____________ Sin 60+sin 45
2 Jawaban
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1. Jawaban ErikCatosLawijaya
Mapel : Matematika
Kelas : X SMA
Bab : Trigonometri
Pembahasan :
(Sin 30 + Cos 30)/(Sin 60 + Sin 45)
= [(1/2) + (1/2√3)]/[(1/2√3) + 1/2√2)]
= [1/2(1 + √3)]/[1/2(√3 + √2)]
= (1 + √3)/(√3 + √2) -
2. Jawaban Anonyme
Bab Trigonometri
Matematika SMA Kelas X
(sin 30° + cos 30°) : (sin 60° + sin 45°)
= (1/2 + 1/2 √3) : (1/2 √3 + 1/2 √2)
= (1 + √3) / (√3 + √2)
= (1 + √3) (√3 - √2) / (3 - 2)
= √3 - √2 + 3 - √6