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Represent the Complex Number Graphically, and Find the Trigonometric Form 12(cosπ+isinπ)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)  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 ) 12(cosπ+isinπ) 12 ( \cos \pi + i \sin \pi )
B)  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 ) 12(cosπ2+isinπ2) 12 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)
C)  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 ) 12(cosπ+isinπ) 12 ( \cos \pi + i \sin \pi )
D)  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 ) 12(cosπ2+isinπ2) 12 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)
E)  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 ) 12(cosπ+isinπ) 12 ( \cos \pi + i \sin \pi )

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