Үшбұрыштарды шешу

$$a^2=b^2+c^2-2bc\cos\alpha$$

$$\frac{а}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}$$

$$c^2=a^2+b^2$$

$$8\sqrt[]{2}$$

$$8\sqrt[]{3}$$

$$16\sqrt[]{2}$$

$$40\degree$$

$$60\degree$$

$$70\degree$$

$$a^2=b^2+c^2-2bc\cos\alpha$$

$$\frac{а}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}$$

$$c^2=a^2+b^2$$

$$АС^2=АВ^2+ВС^2-2АВ\cdotВС\cos\angle A$$

$$АС^2=АВ^2+ВС^2-2АВ\cdotВС\cos\angle B$$

$$АС^2=АВ^2+ВС^2-2АВ\cdotВС\cos\angle C$$

$$\frac{AC^2+AB^2-BC^2}{2AB\cdot AC}$$

$$\frac{AB^2+BC^2-AC^2}{2AB\cdot BC}$$

$$\frac{BC^2+AC^2-AB^2}{2AC\cdot BC}$$