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Homework Statement
Find the interval of convergence of each of the following
Ʃ[itex]^{∞}_{n=0}[/itex] ([itex]\frac{3^{n}2^{2}}{2^{2n}}[/itex](x1)[itex]^{n}[/itex])
Homework Equations
Please refer to attachment
The Attempt at a Solution
Please refer to attachment. All I want to know is that I'm doing this problem right. I have found the interval but haven't plugged the interval back into the equation.
Attachments

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