Imaginary Number i
How to use the imaginary number i to simiplify the square root of a negative number: definition, 1 example, and its solution.
i = √-1
The number in the square root sign
cannot be (-).
So i = √-1 is not a real number.
This is why
i is called the imaginary number.
The minus sign inside the square root means i.
So √-36 = √36i.
36 = 62
Cancel the square root and the square.
Then √62i = 6i.
So 6i is the answer.