Level:
Project ID:
2010012005
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
The arithmetic mean of all values of \( \varphi \) between \( 0^{\circ} \) and \( 360^{\circ} \) for which
\( \sin\!\left(\varphi - 40^{\circ}\right) = 0 \) is:
\( 130^{\circ} \)
\( 220^{\circ} \)
\( 40^{\circ} \)
\( 180^{\circ} \)