Is [math](5 + 6i^9) – (5 + 3i^{15})[/math] wholly real or wholly imaginary, or does it have both a real and an imaginary part?
[list=1] [*]Simplify any expressions containing [math]i^n[/math]. [*]Distribute the difference through both parts of the complex number. [*]Find the sum or difference of the real parts. [/list] This applet is provided by Walch Education as supplemental material for the [i]CCGPS Analytic Geometry[/i] program. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on our resources.