SOAL TRIGONOMETRI

90

180

135

150

360

90

135

150

180

360

$$\frac{1}{2}\pi$$  

$$\frac{1}{3}\pi$$  

$$\frac{1}{6}\pi$$  

$$\frac{1}{8}\pi$$  

$$\frac{1}{9}\pi$$  

2π/3

3π/4

4π/5

5π/6

7π/6

$$Sin\ \alpha\ =\frac{BC}{AB}$$

$$Sin\ \beta\ =\frac{AC}{AB}$$

$$Cos\ \alpha\ =\frac{AC}{AB}$$

$$Cos\ \beta=\frac{BC}{AC}$$

$$Tan\ \alpha\ =\frac{BC}{AC}$$

$$\frac{12}{15}$$  

$$\frac{9}{15}$$  

$$\frac{15}{12}$$  

$$\frac{15}{9}$$  

$$\frac{9}{12}$$  

20

17

19

21

18

$$\tan\alpha=\frac{depan}{samping}$$

$$\operatorname{cotan}\alpha=\frac{samping}{miring}$$

$$\sin\alpha=\frac{depan}{miring}$$

$$\operatorname{cosec}\alpha=\frac{miring}{depan}$$

cosinus

cosecan

cotangen

secan

tangen