Find All Solutions of the Equation $$x ^ { 2 } - i = 0$$

question 209

Multiple Choice

Find all solutions of the equation. Leave answers in trigonometric form.
- $$x ^ { 2 } - i = 0$$

• A) \(\left\{ \operatorname { cis } 180 ^ { \circ } , \operatorname { cis } 0 ^ { \circ } \right\}\)
• B) \(\left\{ \operatorname { cis } 315 ^ { \circ } , \operatorname { cis } 135 ^ { \circ } \right\}\)
• C) \(\left\{ \operatorname { cis } 270 ^ { \circ } , \operatorname { cis } 90 ^ { \circ } \right\}\)
• D) \(\left\{ \operatorname { cis } 45 ^ { \circ } \right.\), cis \(\left. 225 ^ { \circ } \right\}\)

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