Imaginary and Complex Numbers
A positive number squared or a negative number squared will always equal to a positive number.
We know how to calculate the square roots of positive numbers but what about the square roots of negative numbers. How can we find their values?
Mathematicians have designated a special number 'i' which is equal to the square root of - 1. Then, it follows that i2 = -1. This new number is called "i", standing for "imaginary"
Find out more about imaginary an complex numbers by reading the explanation below.
Practice: Answer the following exercises about imaginary and complex numbers.
Imaginary and Complex Numbers 1