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21 January, 03:21

Which of the following is a complex number?

A. - 7

B. 2 + square root of 3

C. 4+9i

D. pi

+4
Answers (2)
  1. 21 January, 06:30
    0
    The answer is: C, 4+9i
  2. 21 January, 06:37
    0
    A complex number has a real part and an imaginary part. The standard form is a + bi, where a is the real part and bi is the imaginary part.

    The only choice here that fits that criteria is letter C.
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