Perform the Indicated Operation Using Trigonometric Form $$( 3 + 3 i ) ( 5 + 5 i )$$

question 22

Multiple Choice

Perform the indicated operation using trigonometric form. Leave answer in trigonometric form.
$$( 3 + 3 i ) ( 5 + 5 i )$$

• A) \(- 15 \left( \cos \frac { 5 \pi } { 4 } + i \sin \frac { 5 \pi } { 4 } \right)\)
• B) \(- 30 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)\)
• C) \(15 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)\)
• D) \(30 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)\)
• E) \(15 \left( \cos \frac { 3 \pi } { 4 } + i \sin \frac { 3 \pi } { 4 } \right)\)

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