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 Sep 18, 2022
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$\forall x>0y>0, if z=(-x,y)$ and Arg z is in second quadrant then Arg z=
Difficulty: Hard
A: 
$-\pi -\tan^{-1}\frac{y}{x}v$
B: 
$\pi -\tan^{-1}\frac{y}{x}v$
C: 
$-\pi +\tan^{-1}\frac{y}{x}v$
D: 
$\pi -\tan^{-1}\frac{y}{x}v$
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NETNUST Entry TestMathematicsNumber System