Which complex number has an absolute value of 5

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Which complex number has an absolute value of 5?

A)–3 + 4i
B)2 + 3i
C)7 – 2i
D)9 + 4i

For this case we can use the Pythagorean theorem to solve the problem.
We have then for the following complex number:

Using the Pythagorean theorem:

Rewriting we have:

A complex number that has an absolute value of 5 is:

A)–3 + 4i

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