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OpenStudy (anonymous):
root (-243)
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OpenStudy (anonymous):
don't you have a calculator?
OpenStudy (pokemon23):
error
OpenStudy (anonymous):
its a complex root dude
OpenStudy (anonymous):
oh lol. didn't even think.
OpenStudy (campbell_st):
well use 243 = 81 x 3 and -1 = i^2 so \[\sqrt{-243} = \sqrt{81 \times 3 \times i^2} = 9i \sqrt{?}\]
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OpenStudy (campbell_st):
oops ? = 3
OpenStudy (pokemon23):
|dw:1328072435104:dw|
OpenStudy (anonymous):
sqrt(243)*i
OpenStudy (anonymous):
where i = sqrt(-1)
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