Imaginary Numbers

An imaginary number is a number that can be written as a real number multiplied by the imaginary unit 'i', where i is defined as the square root of -1.

i

2i

3i√5

The imaginary unit 'i' is defined as √-1.

2i√7

i√23

Real numbers can be represented on a number line, while imaginary numbers are represented on a perpendicular axis, forming the complex plane.

A complex number is a number that has a real part and an imaginary part, expressed in the form a + bi, where a is the real part and b is the imaginary part.

To add complex numbers, add their real parts and their imaginary parts separately.