Write the Complex Number in Rectangular Form $3 \left( \cos \frac { \pi } { 3 } + i \sin \frac { \pi } { 3 } \right)$

question 147

Multiple Choice

Write the complex number in rectangular form.
- $3 \left( \cos \frac { \pi } { 3 } + i \sin \frac { \pi } { 3 } \right)$

• A) \(\frac { \sqrt { 3 } } { 2 } + \frac { 3 \sqrt { 3 } } { 2 }\) i
• B) \(\frac { \sqrt { 3 } } { 6 } + \frac { \sqrt { 3 } } { 6 } \mathrm { i }\)
• C) \(\sqrt { 3 } + i\)
• D) \(\frac { 3 } { 2 } + \frac { 3 \sqrt { 3 } } { 2 } \mathrm { i }\)

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