Question:
Wybierz wszystkie wartości $\varphi$, dla których wyrażenie $\sin \varphi \cdot \mathrm{tg}\, \varphi$ jest dodatnie.
Project ID:
7400220177
Answer 1:
$\varphi = \frac{1}{10}\pi$
Answer 1 Correct:
1
Answer 2:
$\varphi = \frac{11}{10}\pi$
Answer 2 Correct:
0
Answer 3:
$\varphi = \frac{3}{4}\pi$
Answer 3 Correct:
0
Answer 4:
$\varphi = 320^{\circ}$
Answer 4 Correct:
1
Answer 5:
$\varphi = \frac{7}{10}\pi$
Answer 5 Correct:
0
Answer 6:
$\varphi = \frac{17}{10}\pi$
Answer 6 Correct:
1
Answer 7:
$\varphi = 70^{\circ}$
Answer 7 Correct:
1
Answer 8:
$\varphi = \frac{11}{6}\pi$
Answer 8 Correct:
1