Convert a Complex Number from Polar to Rectangular Form
- $- 7 \left( \cos 120 ^ { \circ } + i \sin 120 ^ { \circ } \right)$

question 100

Multiple Choice

Convert a Complex Number from Polar to Rectangular Form
- $- 7 \left( \cos 120 ^ { \circ } + i \sin 120 ^ { \circ } \right)$

• A) \(\frac { 7 } { 2 } + \frac { - 7 \sqrt { 3 } } { 2 } \mathrm { i }\)
• B) \(- \frac { 7 } { 2 } + \frac { - 7 \sqrt { 3 } } { 2 } \mathrm { i }\)
• C) \(\frac { 7 } { 2 } + \frac { 7 \sqrt { 3 } } { 2 } i\)
• D) \(- \frac { 7 } { 2 } + \frac { 7 \sqrt { 3 } } { 2 } \mathrm { i }\)

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