Level:
Project ID:
1003086004
Accepted:
1
Clonable:
0
Easy:
0
The arithmetic mean of all the solutions of the equation \( \sin^2x - \cos^2x + \sin x = 0 \) on the interval \( \left[0^{\circ}; 360^{\circ}\right] \) is:
\( 150^{\circ} \)
\( 90^{\circ} \)
\( 360^{\circ} \)
\( 210^{\circ} \)