(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

express the arg(z) and polar form of

([itex]1/\sqrt{2}[/itex]) - ([itex]i/\sqrt{2}[/itex])

2. Relevant equations

3. The attempt at a solution

Ok so I did [itex]\sqrt{(1/\sqrt{2})^{2}+(1/\sqrt{2})^{2}}[/itex] = 1

so tan[itex]^{-1}[/itex](1) = [itex]\pi/4[/itex] so arg(z)=5[itex]\pi[/itex][itex]/4[/itex]

but they had the answer as [itex]-3\pi/4[/itex]

Am I wrong or are they because shouldnt the arg(z) lie in the third quad.??

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# Homework Help: Polar form and arg(z) problem

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