Respuesta :

Hello! To solve this exercise, we must remember about Complex Numbers and Real Numbers. To understand it better, look to the image below:

Knowing it, let's analyze each number and classify them:

• -12 is a real number

• 0 + 9i = 9i is a non-real complex number

• i^6 = -1 is a real number

• 7 -5i is a non-real number

• -i² + i³ is a non-real number

,

[tex]\sqrt[]{(-5)^2}=\sqrt[]{25}=5\text{ is a real number}[/tex]

[tex]2-7i^2=9\text{ is a real number}[/tex]

[tex]\sqrt[]{-6}\text{ is a non-real complex number}[/tex]

Ver imagen JenellyV160527
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