anonymous
  • anonymous
is the square root of -64 = -8?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[\sqrt{-64^{?}}\] = -8 ?
anonymous
  • anonymous
\[\sqrt{-64} = \sqrt{64} \cdot \sqrt{-1}\]\[\sqrt{-1} = i\]
anonymous
  • anonymous
so its the answer -8i?

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anonymous
  • anonymous
Just 8i
anonymous
  • anonymous
oh is it because of the (sqrt)-1 ?
anonymous
  • anonymous
Yes. We factor the negative one out to get i. Then we take the square root of a positive number.
anonymous
  • anonymous
great tytytytyty :)

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