tolong jawab soal ada di bawah ini
1.
[tex] \frac{3}{5} \pi = [/tex]
2.
[tex]cos( \frac{\pi}{3} ) = [/tex]
3.
210°=......π
4.
600°=.....π
5.
[tex] \frac{7}{9} \pi = [/tex]
1.
[tex] \frac{3}{5} \pi = [/tex]
2.
[tex]cos( \frac{\pi}{3} ) = [/tex]
3.
210°=......π
4.
600°=.....π
5.
[tex] \frac{7}{9} \pi = [/tex]
konversi
derajat → radian
α° = α × π/180 radian
radian → derajat
α radian = α × 180°/π
•
3/5 π = 3/5 × 180° = 3 × 36° = 108°
•
cos (π/3)
= cos (180°/3)
= cos 60°
= 1/2
•
210° = 210 × π/180 = 7/3 π radian
•
600° = 600 × π/180 = 10/3 π radian
•
7/9 π = 7/9 × 180° = 7 × 20° = 140°