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OpenStudy (anonymous):
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OpenStudy (anonymous):
\[\sqrt{-28}\]
hartnn (hartnn):
\(\sqrt{-28}=\sqrt{-1}\sqrt{4}\sqrt{7}=?\)
OpenStudy (anonymous):
\[2 i \sqrt{7}\]
hartnn (hartnn):
yes :)
OpenStudy (anonymous):
yay :D thx
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hartnn (hartnn):
welcome ^_^
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