SOLUTION: Find two square roots for the following complex number. Leave your answers in trigonometric form. (Enter your angles in radians. Do not use cis form.) 81 cis π

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Question 1080021: Find two square roots for the following complex number. Leave your answers in trigonometric form. (Enter your angles in radians. Do not use cis form.)
81 cis π
Found 2 solutions by ikleyn, Alan3354:
Answer by ikleyn(52780)   (Show Source): You can put this solution on YOUR website!
.
 = -81.


Therefore, square root of this number has two complex values:


1)  9i = ,     and


2)  -9i = .


Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Find two square roots for the following complex number. Leave your answers in trigonometric form.
81cis(pi)
---------
--> 9cis(pi/2)
and 9cis(3pi/2)
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