Square Rule

Reference > Algebra: Imaginary Numbers

Description

The Square Rule states that:

\({i}^{2}=-1\)
Examples
\[{i}^{3}\]
1
Isolate \({\imath }^{2}\)
\[{\imath }^{2}\imath \]

2
Use Square Rule: \({i}^{2}=-1\)
\[-1\times \imath \]

3
Simplify
\[-\imath \]

Done