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Express the complex number in trigonometric form. -4

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trig

asked Jun 10, 2016 in PRECALCULUS by anonymous
reshown Jun 10, 2016 by goushi

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1 Answer

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Step 1:

The complex number is .

Find trigonometric form.

Trigonometric form .

Find .

General form of trigonometric identity is .

Substitute in the above equation.

Find .

, when .

Substitute in the above equation.

Substitute and in the trigonometric form.

Solution:

Trigonometric form is

answered Jun 10, 2016 by Anney Mentor

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