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10 cards from this deck
eiθ=cosθ+isinθe^{i\theta} = \cos\theta + i\sin\thetaeiθ=cosθ+isinθ
z=reiθz = re^{i\theta}z=reiθ
−π<θ≤π-\pi < \theta \leq \pi−π<θ≤π
∣z∣|z|∣z∣ (modulus)
argz\arg zargz (argument)
eiθ+e−iθ2\frac{e^{i\theta} + e^{-i\theta}}{2}2eiθ+e−iθ
eiθ−e−iθ2i\frac{e^{i\theta} - e^{-i\theta}}{2i}2ieiθ−e−iθ
r1r2ei(θ1+θ2)r_1r_2e^{i(\theta_1 + \theta_2)}r1r2ei(θ1+θ2)
r1r2ei(θ1−θ2)\frac{r_1}{r_2}e^{i(\theta_1 - \theta_2)}r2r1ei(θ1−θ2)
Use eiθ=cosθ+isinθe^{i\theta} = \cos\theta + i\sin\thetaeiθ=cosθ+isinθ, then evaluate
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