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A complex number question (1 Viewer)

mathsbrain

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yeah that gives me -pi/4< arg(z) < pi/4
but on wolfram alpha it gave me something weird, try typing "arg(z(1+i))< pi/2" and see the plot that wolfram alpha returns
 

mathsbrain

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does it have something to do with principal argument in this case?
 

RealiseNothing

what is that?It is Cowpea
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wolframalpha interprets it differently

what you have is correct, just sketch it
 

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