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10 cards from this deck
∣z∣=a2+b2|z| = \sqrt{a^2 + b^2}∣z∣=a2+b2
−π<θ≤π-\pi < \theta \leq \pi−π<θ≤π
z=r(cosθ+isinθ)z = r(\cos\theta + i\sin\theta)z=r(cosθ+isinθ)
a=rcosθa = r\cos\thetaa=rcosθ
b=rsinθb = r\sin\thetab=rsinθ
∣z1∣∣z2∣|z_1||z_2|∣z1∣∣z2∣
arg(z1)+arg(z2)\arg(z_1) + \arg(z_2)arg(z1)+arg(z2)
Circle with centre z1z_1z1 and radius rrr
Half-line from z1z_1z1 at angle θ\thetaθ
Perpendicular bisector of segment joining z1z_1z1 and z2z_2z2
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