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. \[\frac{1}{\sqrt{2}}\]                 


Discussion

No Comment Found

Related MCQs