Question

Найдите ѕіn а и ѕіn В​

Answer 1

$\sin A = \frac{CB}{AB} \\ \sin A = \frac{16}{20} = \frac{4}{5}= 0,8\\ \cos B = \frac{AC}{AB} \\ \cos B = \frac{12}{20} = \frac{3}{5}=0,6$