Hi All,

I am going through notes our lecturer gave us, am having some problems with it

Given the wave function where A, lambda and omega are psoitive real constants and

either (x greater and equal to 0) and (-x less than or equal to 0)

1) Normalise Psi, 2) Determine the expectation values of x and x^2

I can derive to far as Then he changes the integral such that

=

Where did the first termof the last expression come out of?

Thanks