- #1

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## Homework Statement

Determine the column vectors representing the states

**|+x>**and

**|-x>**using the states

**|+y>**and

**|-y>**as a basis.

## Homework Equations

?

## The Attempt at a Solution

The hint my prof gave us was that since

**|+x>**= 1/√2|+z> + 1/√2|-z> we can eliminate the states |+z> and |-z> in favor of |+y> and |-y>

I'm just lost I guess, i'm not sure how to eliminate the z states in favor of y. Any further hint or suggestion would be much appreciated.