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## Homework Statement

The problem is referring to an example in the chapter.

*Use Parity Arguments to show that in Example3-5 the A_n for n is even must vanish.*

Here is the example:

http://imageshack.us/a/img28/5664/qmproblem.gif [Broken]

## The Attempt at a Solution

I honestly do not know where to start with this. The parity operator simply switches the sign of "x" in the wave function. It is easy enough to SEE that they go to zero without using parity arguments. Any push in the right direction would be appreciated!

~Matt

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