Find the Product or Quotient, as Indicated $$\frac { 9 ( \cos 7 \pi + i \sin 7 \pi ) } { 4 ( \cos 5 \pi + i \sin 5 \pi ) }$$

question 109

Multiple Choice

Find the product or quotient, as indicated. Leave your answer in polar form.
-Find the quotient.
$$\frac { 9 ( \cos 7 \pi + i \sin 7 \pi ) } { 4 ( \cos 5 \pi + i \sin 5 \pi ) }$$

• A) \(5 ( \cos 2 \pi + i \sin 2 \pi )\)
• B) \(5 \left( \cos \frac { 7 } { 5 } + i \sin \frac { 7 } { 5 } \right)\)
• C) \(\frac { 9 } { 4 } ( \cos 2 \pi + i \sin 2 \pi )\)
• D) \(\frac { 9 } { 4 } \left( \cos \frac { 7 } { 5 } + i \sin \frac { 7 } { 5 } \right)\)

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