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Find All Cube Roots of the Complex Number 4cis0,4cis120,4cis2404 \operatorname { cis } 0 ^ { \circ } , 4 \operatorname { cis } 120 ^ { \circ } , 4 \operatorname { cis } 240 ^ { \circ }

Question 304

Multiple Choice

Find all cube roots of the complex number. Leave answers in trigonometric form.
-64


A) 4cis0,4cis120,4cis2404 \operatorname { cis } 0 ^ { \circ } , 4 \operatorname { cis } 120 ^ { \circ } , 4 \operatorname { cis } 240 ^ { \circ }
B) 4cis0,4cis60,4cis1204 \operatorname { cis } 0 ^ { \circ } , 4 \operatorname { cis } 60 ^ { \circ } , 4 \operatorname { cis } 120 ^ { \circ }
C) 4cis45,4cis165,4cis3254 \operatorname { cis } 45 ^ { \circ } , 4 \operatorname { cis } 165 ^ { \circ } , 4 \operatorname { cis } 325 ^ { \circ }
D) 4cis90,4cis210,4cis3304 \operatorname { cis } 90 ^ { \circ } , 4 \operatorname { cis } 210 ^ { \circ } , 4 \operatorname { cis } 330 ^ { \circ }

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