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liberstina [14]
3 years ago
15

Which of the following is a complex number?

Mathematics
1 answer:
hram777 [196]3 years ago
5 0

Answer:

C 4+9i

Step-by-step explanation:

A complex number has to have a real and imaginary part.

It is in the form a+bi

A. -7   real

B. 2 + square root of 3  real

C. 4 + 9i   real + imaginary  = complex

D. pi  real

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