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is (-4)1/2 a real function?

Mathematics
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hmmm this is isnt a function since you r missing the x and y's its just a plain value
and it's not a real value as it's complex
\[\sqrt{-4}\]

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Other answers:

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

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