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Digital SAT
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Finding the Modulus of a Complex Number

Medium Additional Math Topics Complex Numbers

Consider the complex number $$z = 3 - 4i$$.

What is the modulus of the complex number $$z$$?

The modulus of a complex number $$z = a + bi$$ is given by the formula: $$|z| = \sqrt{a^2 + b^2}$$, where $$a$$ is the real part and $$b$$ is the imaginary part of the complex number.

Hint

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