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Represent the Complex Number Graphically,and Find the Trigonometric Form of the Number

Question 18

Multiple Choice

Represent the complex number graphically,and find the trigonometric form of the number. ​
12i
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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(cos⁡π+isin⁡π) 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(cos⁡π2+isin⁡π2) 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(cos⁡π+isin⁡π) 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(cos⁡π2+isin⁡π2) 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(cos⁡π+isin⁡π) 12 ( \cos \pi + i \sin \pi )

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