Question

3) sin30° - 3tg45°;пжжж​

Answer 1

Ответ:

$\sin( {30}^{0} ) - 3 \tan( {45}^{0} ) = \frac{1}{2} - 3 \times 1 = \frac{1}{2} - 3 = - \frac{5}{2}$