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OpenStudy (anonymous):
simplify the number using the imaginary unit i.
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OpenStudy (anonymous):
OpenStudy (math&ing001):
\[\sqrt{-16}=\sqrt{16*i ^{2}}=4i\]
OpenStudy (math&ing001):
Because \[-1=i ^{2}\]
OpenStudy (anonymous):
is that the answer?
OpenStudy (math&ing001):
4i is the answer
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OpenStudy (anonymous):
thankyou so much
OpenStudy (math&ing001):
No problem ^^
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