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astra-53 [7]
3 years ago
9

Which of the following numbers belong to the set of complex numbers AND The set of imaginary numbers? Select all that apply.

Mathematics
1 answer:
zvonat [6]3 years ago
8 0

A complex number is a number of the form a+bi, 

if b=0, that is if the number is a, then it is a Real number

if a=0, that is if the number is bi, then it is called an imaginary number.



All imaginary numbers are complex numbers.

Also, all real numbers (non-imaginary) are complex numbers.


Thus, all the numbers given are complex.

3i   :   imaginary

-5i :    imaginary

6-i:    complex

square root of 21: real, non-imaginary, complex

Negative square root of 16=-4:  real, non-imaginary, complex

<span>Square root of -14 = (square root of 14)i:   imaginary</span>
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