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Modulus of a Complex Number

Find the modu...

Question

Find the modulus of the complex number $z = 2 + 3 i$ .

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Solution

Given the complex number is $z = 2 + 3 i$ .
Then,
$| z | = \sqrt{2^{2} + 3^{2}}$
$= \sqrt{4 + 9}$
$= \sqrt{13}$ .

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