Write the complex number in trigonometric form.
A) $Z = 3 ( \cos \pi - i \cos \pi )$
B) $Z = 3 ( \cos \pi + i \sin \pi )$
C) $Z = - 3 ( \cos \pi + i \sin \pi )$
D) $Z = 3 \left( \cos \frac { \pi } { 2 } - i \sin \frac { \pi } { 2 } \right)$
E) $Z = 3 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$

Question

Write the complex number in trigonometric form.     
A) $Z = 3 ( \cos \pi - i \cos \pi )$ 
B) $Z = 3 ( \cos \pi + i \sin \pi )$ 
C) $Z = - 3 ( \cos \pi + i \sin \pi )$ 
D) $Z = 3 \left( \cos \frac { \pi } { 2 } - i \sin \frac { \pi } { 2 } \right)$ 
E) $Z = 3 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$

Quizplus · Accepted Answer

The Answer is B

Write the Complex Number in Trigonometric Form Z=3(cos⁡π−icos⁡π)Z = 3 ( \cos \pi - i \cos \pi )Z=3(cosπ−icosπ)

Write the Complex Number in Trigonometric Form $Z = 3 ( \cos \pi - i \cos \pi )$