Which of the following is a complex number? -7 2 + StartRoot 3 EndRoot 4 + 9i Pi

Question

asked Dec 16, 2021 126k views

2 Answers

Artheyn · Answer 1 · 2021-12-21T11:44:06+0000

Answer:

4 + 9i

Explanation:

a complex number by definition must have a real and imaginary components

imaginary components are denoted by the letter i, where i = √(-1)

the only choice with a real and imaginary components is 4 + 9i