MCQOPTIONS
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| 1. |
Suppose ω is a cube root of unity with ω ≠ 1. Suppose P and Q are the points on the complex plane defined by ω and ω2. If O is the origin, then what is the angle between OP and OQ? |
| A. | 60° |
| B. | 90° |
| C. | 120° |
| D. | 150° |
| Answer» B. 90° | |