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OpenStudy (anonymous):
express sqrt -31 in the form of bi, where b is a real number
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OpenStudy (anonymous):
|dw:1329507359196:dw|
OpenStudy (anonymous):
Thanks. So the number in the sqrt would change its (-) sign to positive becuase of the (i) right?
OpenStudy (anonymous):
yes - when a negative is under the radical - pull it out as i
OpenStudy (anonymous):
Okay thanks :)
OpenStudy (anonymous):
u/w
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