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Roots

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Find the 3rd roots of 9i. Give answers as comma-separated list of complex numbers in a+bi form.
asked Jul 7, 2016 in PRECALCULUS by anonymous
reshown Jul 8, 2016 by goushi
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1 Answer

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The complex number is image.

Find the roots.

Apply radical formula: image.

image

The roots are  image

answered Jul 8, 2016 by Anney Mentor

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