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OpenStudy (anonymous):
Simplify the number using the imaginary unit i.
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OpenStudy (anonymous):
|dw:1344722152277:dw|
OpenStudy (anonymous):
A. 12 B. -12 C. 12i D. 144i
OpenStudy (anonymous):
Is it c?
hartnn (hartnn):
yes it is :)
OpenStudy (anonymous):
Thank you!
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OpenStudy (anonymous):
Yup \[\sqrt{-144}= \sqrt{-1}*\sqrt{144}=i*12\]
OpenStudy (anonymous):
you too!
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