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## Homework Statement

consider the differential d²ψ(x)/dx²=k²ψ(x); for which values of

**a**is the equation e^(a*x) is a solution to the above equation.

## Homework Equations

## The Attempt at a Solution

I have been working on this problem but I do not know how relate the 2 equations, or if I should use the Schrodinger equation. Any help is greatly appreciated.