Write the Expression in the Standard Form a + Bi $\left[ \sqrt { 2 } \left( \cos \frac { 3 \pi } { 4 } + i \sin \frac { 3 \pi } { 4 } \right) \right] ^ { 4 }$

question 87

Multiple Choice

Write the expression in the standard form a + bi.
- $\left[ \sqrt { 2 } \left( \cos \frac { 3 \pi } { 4 } + i \sin \frac { 3 \pi } { 4 } \right) \right] ^ { 4 }$

• A) \(4 \mathrm { i }\)
• B) \(- 4\)
• C) \(- 4 \mathrm { i }\)
• D) 4

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