Which of the following is an example of a complex number that is not in the set of real numbers? A) -7 B) 2 + √(3) C) 4+9i D) \pi ​

Question

Which of the following is an example of a complex number that is not in the set of real numbers?

A) -7
B)

`2 + √(3)`
C) 4+9i
D)

`\pi`
​

Answer 1

Answer: 4 + 9i

On edge2020.

Answer 2

C

Explanation:

By convention, it is C.

B is irrational but still real

D is irrational but still real

A is an integer which is real.