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OpenStudy (this):
'
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OpenStudy (ghazi):
is that your question :)
OpenStudy (this):
|dw:1345689653534:dw|
OpenStudy (ghazi):
well it's = 2i
OpenStudy (anonymous):
\[\large2i\]
OpenStudy (ghazi):
\[\sqrt{-1}=i...\sqrt{4}=2....\sqrt{-4}=2i\]
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OpenStudy (this):
|dw:1345689783859:dw|?
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