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sama cara dan penjelasan y!!?
sama cara dan penjelasan y!!?
Jawab:
trigonometri
fungsi
segitiga siku
perhatian gambar
Δ ABC siku di B
AB = 6
BC = 8
AC² = AB²+BC² =6²+8²= 100
AC = 10
a, sin α = AB/AC = 6/10 = 3/5
b. cos α = BC/AC = 8/10 = 4/5
c. tan α = AB/BC = 6/8 = 3/4
d. sin β = BC/AC = 8/10 = 4/5
e. cos β = AB/AC = 6/10 = 3/5
f. tan β = BC/AB = 8/6 = 4/3
