Find All Cube Roots of the Complex Number $- 27$ A) $3 \operatorname { cis } 30 ^ { \circ } , 3 \operatorname { cis } 150 ^ { \circ } , 3 \operatorname { cis } 270 ^ { \circ }$

question 59

Multiple Choice

Find all cube roots of the complex number. Leave answers in trigonometric form.
- $- 27$

• A) \(3 \operatorname { cis } 30 ^ { \circ } , 3 \operatorname { cis } 150 ^ { \circ } , 3 \operatorname { cis } 270 ^ { \circ }\)
• B) \(3 \operatorname { cis } 60 ^ { \circ } , 3\) cis \(180 ^ { \circ } , 3\) cis \(300 ^ { \circ }\)
• C) \(3 \operatorname { cis } 180 ^ { \circ } , 3 \operatorname { cis } 0 ^ { \circ }\)
• D) \(3 \operatorname { cis } 120 ^ { \circ } , 3 \operatorname { cis } 180 ^ { \circ } , 3 \operatorname { cis } 300 ^ { \circ }\)

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The psychological principle where individuals more likely remember information that is consistent with their beliefs, values, or interests, ignoring contradicting information.