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

Question 383

Multiple Choice

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


A) 5cis210,5cis270,5cis3305 \operatorname { cis } ^ { \circ } 210,5 \operatorname { cis } 270 ^ { \circ } , 5 \operatorname { cis } 330 ^ { \circ }
B) 5cis30,5cis60,5cis905 \operatorname { cis } 30 ^ { \circ } , 5 \operatorname { cis } ^ { \circ } 60,5 \operatorname { cis } 90 ^ { \circ }
C) 5cis90,5cis180,5cis2705 \operatorname { cis } 90 ^ { \circ } , 5 \operatorname { cis } ^ { \circ } 180,5 \operatorname { cis } 270 ^ { \circ }
D) 5cis90,5cis210,5cis3305 \operatorname { cis } 90 ^ { \circ } , 5 \operatorname { cis } ^ { \circ } 210,5 \operatorname { cis } 330 ^ { \circ }

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