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Represent the Complex Number Graphically, and Find the Trigonometric Form $8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)$

Question 231

Multiple Choice

Represent the complex number graphically, and find the trigonometric form of the number.
-8i

A) $Represent the complex number graphically, and find the trigonometric form of the number. -8i A) 8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right) B) 8 ( \cos \pi - i \sin \pi ) C) 8 \left( \cos \frac { 3 \pi } { 2 } - i \sin \frac { 3 \pi } { 2 } \right) D) 8 ( \cos \pi + i \sin \pi ) E) 8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$ $8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)$
B) $Represent the complex number graphically, and find the trigonometric form of the number. -8i A) 8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right) B) 8 ( \cos \pi - i \sin \pi ) C) 8 \left( \cos \frac { 3 \pi } { 2 } - i \sin \frac { 3 \pi } { 2 } \right) D) 8 ( \cos \pi + i \sin \pi ) E) 8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$ $8 ( \cos \pi - i \sin \pi )$
C) $Represent the complex number graphically, and find the trigonometric form of the number. -8i A) 8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right) B) 8 ( \cos \pi - i \sin \pi ) C) 8 \left( \cos \frac { 3 \pi } { 2 } - i \sin \frac { 3 \pi } { 2 } \right) D) 8 ( \cos \pi + i \sin \pi ) E) 8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$ $8 \left( \cos \frac { 3 \pi } { 2 } - i \sin \frac { 3 \pi } { 2 } \right)$
D) $Represent the complex number graphically, and find the trigonometric form of the number. -8i A) 8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right) B) 8 ( \cos \pi - i \sin \pi ) C) 8 \left( \cos \frac { 3 \pi } { 2 } - i \sin \frac { 3 \pi } { 2 } \right) D) 8 ( \cos \pi + i \sin \pi ) E) 8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$ $8 ( \cos \pi + i \sin \pi )$
E) $Represent the complex number graphically, and find the trigonometric form of the number. -8i A) 8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right) B) 8 ( \cos \pi - i \sin \pi ) C) 8 \left( \cos \frac { 3 \pi } { 2 } - i \sin \frac { 3 \pi } { 2 } \right) D) 8 ( \cos \pi + i \sin \pi ) E) 8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$ $8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$

Represent the Complex Number Graphically, and Find the Trigonometric Form 8(cos⁡π2+isin⁡π2)8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)8(cos2π​+isin2π​)

Multiple Choice

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Represent the Complex Number Graphically, and Find the Trigonometric Form $8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)$

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