Represent the Complex Number Graphically, and Find the Trigonometric Form $12 ( \cos \pi + i \sin \pi )$

question 156

Multiple Choice

Represent the complex number graphically, and find the trigonometric form of the number.
12i

• A) \(12 ( \cos \pi + i \sin \pi )\)
• B) \(12 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)\)
• C) \(12 ( \cos \pi + i \sin \pi )\)
• D) \(12 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)\)
• E) \(12 ( \cos \pi + i \sin \pi )\)

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