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Find All Cube Roots of the Complex Number 125i125 \mathrm { i }

Question 7

Multiple Choice

Find all cube roots of the complex number. Leave answers in trigonometric form.
- 125i125 \mathrm { i }


A) 5 cis 0,5cis120,50 ^ { \circ } , 5 \operatorname { cis } 120 ^ { \circ } , 5 cis 240240 ^ { \circ }
B) 5cis60,5cis180,5cis3005 \operatorname { cis } 60 ^ { \circ } , 5 \operatorname { cis } 180 ^ { \circ } , 5 \operatorname { cis } 300 ^ { \circ }
C) 1,1,i1 , - 1 , - \mathrm { i }
D) 5cis30,5cis150,5cis2705 \operatorname { cis } 30 ^ { \circ } , 5 \operatorname { cis } 150 ^ { \circ } , 5 \operatorname { cis } 270 ^ { \circ }

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