SOLUTION: How are polar coordinates useful for working with complex numbers (hint: think about powers and roots)?

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Question 1141888: How are polar coordinates useful for working with complex numbers (hint: think about powers and roots)?
Answer by math_helper(2461) About Me  (Show Source):
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Because it allows you to use rules of exponents
For example, to find +%286%2B7i%29%5E5+ you could multiply it out using rectangular form, but it is much easier to find +%289.2195%2Ae%5E%280.862i%29+%29%5E5+

because +%28+r%2Ae%5E%28i%2Atheta%29+%29%5En+=+r%5En%2Ae%5E%28i%2Atheta%2An%29+