MCQOPTIONS
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| 1. |
If \[\omega \] is imaginary cube root of unity, then \[\sin \left\{ ({{\omega }^{13}}+{{\omega }^{2}})\pi +\frac{\pi }{4} \right\}\] is equal to |
| A. | \[-\frac{\sqrt{3}}{2}\] |
| B. | \[-\frac{1}{\sqrt{2}}\] |
| C. | \[\frac{1}{\sqrt{2}}\] |
| D. | \[\frac{\sqrt{3}}{2}\] |
| Answer» C. \[\frac{1}{\sqrt{2}}\] | |