Consider the approximate wave function for a particle of mass m in a 1-dimensional box of width a : (x)=a530x(ax) for 0xa and zero otherwise. What is the expectation value for the position of the particle x^=dx(x)x^(x) in the system described by the wave function introduced above? x^=5x2 x^=2a x^=4a2 x^=2(a+x) x^=a25