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26-02-2021
Mathematics

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What complex number has an absolute value of 5?

A. -3 + 4i
B. 2 + 3i
C. 7 - 2i
D. 9 + 4i

Respuesta :

michelle92503 michelle92503

26-02-2021

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:

Answer:
A complex number that has an absolute value of 5 is:
A)–3 + 4i

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