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Let z1=2(cosπ6+isinπ6)z _ { 1 } = \sqrt { 2 } \left( \cos \frac { \pi } { 6 } + i \sin \frac { \pi } { 6 } \right)

Question 98

Multiple Choice

Let z1=2(cosπ6+isinπ6) z _ { 1 } = \sqrt { 2 } \left( \cos \frac { \pi } { 6 } + i \sin \frac { \pi } { 6 } \right) and z2=2(cosπ3+isinπ3) z _ { 2 } = \sqrt { 2 } \left( \cos \frac { \pi } { 3 } + i \sin \frac { \pi } { 3 } \right) ) Find Z1Z2Z _ { 1 } Z _ { 2 }


A) 2+i\sqrt { 2 } + i
B) 22i2 - 2 i
C) 22\frac { \sqrt { 2 } } { 2 }
D) 2j2 j
E) none

Correct Answer:

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