Răspuns:
Explicație pas cu pas:
Teorema sinusurilor :
[tex] \frac{AB}{sin C} = \frac{BC}{sin A } \\ [/tex]
[tex] \frac{12}{sin30 } = \frac{8}{sin A } \\ [/tex]
[tex] \frac{12}{ \frac{1}{2} } = \frac{8}{sinA} \\ [/tex]
[tex]24 = \frac{8}{sinA} \\ [/tex]
[tex]\boxed{sinA = \frac{8 {}^{(8} }{24} = \frac{1}{3} } \\ [/tex]
