What are imaginary numbe?

Answer 1

Imaginary numbers are a class of numbers that extend the real number system, defined as multiples of the imaginary unit (i), where (i) is the square root of (-1). They allow for the solution of equations that do not have real solutions, such as (x^2 + 1 = 0). Imaginary numbers are often used in complex numbers, which combine real and imaginary parts in the form (a + bi), where (a) and (b) are real numbers. They have important applications in fields such as engineering, physics, and mathematics.