Write the Complex Number in the Form a + Bi $3 \left( \cos 270 ^ { \circ } + i \sin 270 ^ { \circ } \right)$

question 89

Multiple Choice

Write the complex number in the form a + bi.
- $3 \left( \cos 270 ^ { \circ } + i \sin 270 ^ { \circ } \right)$

• A) \(- 3 \mathrm { i }\)
• B) 3
• C) \(- 3\)
• D) \(3 \mathrm { i }\)

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