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November 23, 2014

# Homework Help: Calculus

Posted by Anne on Friday, September 21, 2012 at 3:01pm.

Determine the polar form of the complex number 3 - 2i. Express the angle theta in degrees, where 0 < theta < 360°, and round numerical entries in the answer to two decimal places.

326.31(cos 326.31° – isin 326.31°)
3.61(cos 326.31° – isin 326.31°)
326.31(cos 3.61° + isin 3.61°)
3.61(cos 326.31° + isin 326.31°)

• Calculus - Steve, Friday, September 21, 2012 at 4:04pm

r = √13, so it must be b or d

assuming that the angles are correct, the number is in IV, so (d) is the choice.
(since sin 326.31° < 0)

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