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OpenStudy (anonymous):
sqrt -40
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OpenStudy (xapproachesinfinity):
\(\sqrt{-4}=\sqrt{-1\times4}=\sqrt{-1}\sqrt{4}=2i\) by definition \(i=\sqrt{-1}\)
OpenStudy (xapproachesinfinity):
i did for 4 not for 40 but is work the same way
OpenStudy (xapproachesinfinity):
\(40=10\times4\)
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