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OpenStudy (anonymous):
Simplify (squareroot) -16 with imaginary unit i Thanks
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OpenStudy (ranga):
\[\Large \sqrt{-16} = \sqrt{16 \times -1} = \sqrt{16} \times \sqrt{-1} = 4i\]
OpenStudy (ranga):
The definition of i is:\[\Large i = \sqrt{-1}\]
OpenStudy (anonymous):
thank you!
OpenStudy (ranga):
you are welcome.
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