A

2010004607

Level: 
A
Evaluate \( (\cos 27^{\circ} + \mathrm{i}\sin 27^{\circ})^{5} \) and find the algebraic form of the result.
\( -\frac{\sqrt{2}}{2} + \frac{\sqrt{2}}{2}\mathrm{i}\)
\( \frac{\sqrt{2}}{2} + \frac{\sqrt{2}}{2}\mathrm{i}\)
\( -\frac{\sqrt{2}}{2} - \frac{\sqrt{2}}{2}\mathrm{i}\)
\( \frac{\sqrt{2}}{2} - \frac{\sqrt{2}}{2}\mathrm{i}\)

2010004606

Level: 
A
Evaluate \( (\cos 33^{\circ} + \mathrm{i}\sin 33^{\circ})^{10} \) and find the algebraic form of the result.
\( \frac{\sqrt{3}}{2} - \frac{1}{2}\mathrm{i}\)
\( \frac{\sqrt{3}}{2} + \frac{1}{2}\mathrm{i}\)
\( \frac{1}{2} + \frac{\sqrt{3}}{2}\mathrm{i}\)
\( \frac{1}{2} - \frac{\sqrt{3}}{2}\mathrm{i}\)