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December 5, 2016

Homework Help: Trignometry

Posted by hello on Monday, July 1, 2013 at 11:02pm.

Solve the equation. Express your answer in trigonometric form.

x^5-11=0

I know the answer is:
11^1/5(cos α + i sin α) for α = 0°, 72°, 144°, 216°, 288°.

But I don't know where to even start working on this problem.

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