Level:
Project ID:
1003055105
Accepted:
1
Clonable:
0
Easy:
0
The measurements of angles \( \theta \) form the set \( M \):
\[ M=\left\{\pi+k\frac23\pi\right\},\ k\in\{-2;-1;1;2\}.\]
Calculate their sum.
\( 4\pi \)
\( 0 \)
\( \frac23 \pi \)
\( -\frac23 \pi \)