4. (a) Show that operators of coordinate x and reflection anticommute, i.e. XR+ Rx = 0 (1) What is the wave function that is the eigenfunction of both x and ? What are the eigenvalues xo and R, respectively, of x and R in this state? (b) In a state described by the wave function Ye physical quantities and g have definite values. What is the relationship between the eigenvalues and g of these quantities if the operators f and corresponding to them anticommute. Do the the results of part (a) agree with your finding in part (b)?