Write the Complex Number in Polar Form $\sqrt { 3 } - \mathrm { i }$

question 166

Multiple Choice

Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.
- $\sqrt { 3 } - \mathrm { i }$

• A) \(2 \left( \cos 330 ^ { \circ } + i \sin 330 ^ { \circ } \right)\)
• B) \(2 \left( \cos 300 ^ { \circ } + i \sin 300 ^ { \circ } \right)\)
• C) \(4 \left( \cos 300 ^ { \circ } + i \sin 300 ^ { \circ } \right)\)
• D) \(4 \left( \cos 330 ^ { \circ } + i \sin 330 ^ { \circ } \right)\)

Differentiate between observational studies and experiments.

Identify and understand the role of confounding variables in research.

Recognize the use and importance of proxy variables in research studies.

Understand the limits of correlation in establishing causation.

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