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10 questions from this quiz
Distance from origin to the point
∣z∣=a2+b2|z| = \sqrt{a^2 + b^2}∣z∣=a2+b2
555
Angle with positive real axis
Radians
θ=tan−1(ba)\theta = \tan^{-1}\left(\frac{b}{a}\right)θ=tan−1(ab)
Real part of complex number
z=∣z∣(cosθ+isinθ)z = |z|(\cos \theta + i \sin \theta)z=∣z∣(cosθ+isinθ)
π−∣θ∣\pi - |\theta|π−∣θ∣
π4\frac{\pi}{4}4π radians
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