Quantum2012

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\title{Quantum Mechanics May 2011}
\author{}
\date{\today}

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\section*{A.1}
Consider the operators $\hat{O}_{1}=x ,\hat{O}_{2}=\frac{d^{2}}{dx^{2}} $ and generic wave function $\psi$ compute $$\hat{O}_{1}\hat{O}_{2}\psi=\hat{O}_{2}\hat{O}_{1}\psi$$

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