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OpenStudy (anonymous):
can anyone help me simplify the sqrt of -121 using complex numbers or something
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OpenStudy (anonymous):
sure since \(\sqrt{121}=11\) you have \[\sqrt{-121}=\sqrt{-1\times 121}=\sqrt{-1}\sqrt{121}=11i\][
OpenStudy (anonymous):
thank you so much!
OpenStudy (anonymous):
yw
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