Problem

Problem

The equation sin⁡x+sin⁡y+sin⁡z=−3\sin x + \sin y + \sin z = -3 for 0≤x≤2π0 \le x \le 2\pi , 0≤y≤2π0 \le y \le 2\pi , 0≤z≤2π0 \le z \le 2\pi , has a. One solution b. Two sets of solutions c. Four sets of solutions d. No solutions

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