Find the Trigonometric Form of the Complex Number Shown Below $10 ( \cos \pi + i \sin \pi )$

question 46

Multiple Choice

Find the trigonometric form of the complex number shown below. 10i

• A)​ \(10 ( \cos \pi + i \sin \pi )\)
• B)​ \(10 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)\)
• C)​ \(10 ( \cos 0 + i \sin 0 )\)
• D)​ \(10 \left( \cos \frac { \pi } { 4 } + i \sin \frac { \pi } { 4 } \right)\)
• E) \(10 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)\)

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