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10 questions from this quiz
Distance from origin on Argand diagram
∣z∣=a2+b2|z| = \sqrt{a^2 + b^2}∣z∣=a2+b2
A positive real number or zero
Pythagoras' theorem
∣z∣|z|∣z∣
555
13\sqrt{13}13
The hypotenuse of a right triangle
∣z1∣+∣z2∣≥∣z1+z2∣|z_1| + |z_2| \geq |z_1 + z_2|∣z1∣+∣z2∣≥∣z1+z2∣
Add the complex numbers, then find modulus
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