The imaginary numbers are a subset of what type of number(s)?

Question

A
rational & irrational

B
complex

C
complex & real

D
real

Answer 1

The correct answer is:

B. complex

Imaginary numbers are a subset of complex numbers. Complex numbers are expressed in the form \( a + bi \), where \( a \) is the real part and \( bi \) is the imaginary part (with \( i \) being the imaginary unit, equal to the square root of -1).