MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the value of cos-1(-x) for all x belongs to [-1, 1]? |
| A. | cos<sup>-1</sup>(-x) |
| B. | cos<sup>-1</sup>(x) |
| C. | cos<sup>-1</sup>(-x) |
| D. | + cos<sup>-1</sup>(x) |
| Answer» C. cos<sup>-1</sup>(-x) | |