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Pre-Calculus-check answers
Posted by
Lucy
on
Tuesday, September 2, 2008
at 4:09pm.
Express 5-2i in polar form. Express your answer in radians to the nearest hundreth.
r=sqrt5^2+-2i^2 which equals sqrt21.Arctan of -2/5+pi equals -18.7
Polar form=sqrt21 cis -18.7
Is this correct??
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