anonymous
  • anonymous
is (-4)1/2 a real function?
Mathematics
katieb
  • katieb
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swissgirl
  • swissgirl
hmmm this is isnt a function since you r missing the x and y's its just a plain value
anonymous
  • anonymous
and it's not a real value as it's complex
anonymous
  • anonymous
\[\sqrt{-4}\]

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swissgirl
  • swissgirl
ohh i thought it was \( 4* {1 \over 2 } \)
swissgirl
  • swissgirl
whoops \( -4* \large {1 \over 2} \)
swissgirl
  • swissgirl
@Susansamir is this the exact question?
swissgirl
  • swissgirl
Wait how did my responses go out of order
anonymous
  • anonymous
thanks guys i got it
swissgirl
  • swissgirl
and now that i refreshed its back in order soo strange
anonymous
  • anonymous
yes, an exponential function, (-4)1/2=-2
UnkleRhaukus
  • UnkleRhaukus
\[f(z)=(-4)^{1/2}\]\[\qquad=\sqrt{-4}\]\[\qquad=2i\] the function \(f(z)\) has no real component

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