What are complex numbers?
1 answer
Complex numbers are numbers that consist of both a real part and an imaginary part. They are usually expressed in the form a + bi, where "a" represents the real part and "bi" represents the imaginary part. The imaginary part is a multiple of the imaginary unit, denoted as "i," which is defined as the square root of -1. Complex numbers are used in various areas of mathematics and engineering, including algebra, calculus, and physics.