Perform the Indicated Operation Using Trigonometric Form $$( 2 + 2 i ) ( - 1 - i )$$

question 41

Multiple Choice

Perform the indicated operation using trigonometric form.Leave the answer in trigonometric forms. $$( 2 + 2 i ) ( - 1 - i )$$ ​

• A) \(- 2 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)\)
• B)​ \(4 \left( \cos \frac { 3 \pi } { 2 } - i \sin \frac { 3 \pi } { 2 } \right)\)
• C)​ \(4 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)\)
• D)​ \(- 2 \left( \cos \frac { 3 \pi } { 4 } + i \sin \frac { 3 \pi } { 4 } \right)\)
• E)​ \(2 \left( \cos \frac { 5 \pi } { 4 } + i \sin \frac { 5 \pi } { 4 } \right)\)

Utilize a sleep diary as an assessment tool for sleep and rest patterns.

Educate patients on the relationship between lifestyle choices and sleep quality.

Understand the concept and implications of confounding variables in research studies.

Interpret correlation coefficients and differentiate between positive and negative correlations.

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