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OpenStudy (anonymous):
√-121 = -11?
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OpenStudy (mathmate):
-11i where i=sqrt(-1)
myininaya (myininaya):
when ever you have a negative under the square root it is imaginary
myininaya (myininaya):
\[\sqrt{-a}=i \sqrt{a}\] for a>0
OpenStudy (anonymous):
are you being taught about imaginary number in school?
OpenStudy (anonymous):
I am home schooled.
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