MCQOPTIONS
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MCQOPTIONS
| 1. |
The modulus of 1 + cos α + i sin α is |
| A. | \(2\sin \frac{\alpha }{2}\) |
| B. | \(2\cos \frac{\alpha }{2}\) |
| C. | \({\sin ^2}\frac{\alpha }{2} - 1\) |
| D. | \({\cos ^2}\frac{\alpha }{2} - 1\) |
| Answer» C. \({\sin ^2}\frac{\alpha }{2} - 1\) | |