anonymous
  • anonymous
Hey guys, just a simple question. I know that you CAN'T take the square root of a negative number, but is this possible, taking the square root of -x?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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hartnn
  • hartnn
do you know about imaginary number \(i=\sqrt{-1}\) ?
anonymous
  • anonymous
umm, i cant write the equation bc the equation button is not working for me. I have heard of them, but never used them. I know they have to do with a negative under the square root.
anonymous
  • anonymous
but im working on a question and i got -x under a square root, is it possible?

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hartnn
  • hartnn
yes, ofcourse it is possible but if imaginar or complex numbers are not yet introduced to you, you should not get an example of imaginary number. can i have the original question, just to make sure ?
hartnn
  • hartnn
bdw, \(\sqrt{-x} = \sqrt{-1}\sqrt{x}=i\sqrt{x}\) if x is positive and \(\sqrt{-x} = \sqrt{|x|}\) if x is negative
anonymous
  • anonymous
umm the equation button is not working for me, i think i will just ask my prof

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