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2 June, 22:47

Which of the following is a complex number?

-7

2 + StartRoot 3 EndRoot

4 + 9i

Pi

+5
Answers (1)
  1. 2 June, 23:05
    0
    4 + 9i

    Step-by-step 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
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