A diverging thin lens and a concave mirror have focal lengths of equal magnitude. An objec...

A diverging thin lens and a concave mirror have focal lengths of equal magnitude. An object is placed (3/2)f from the diverging lens, and the mirror is placed a distance 3f on the other side of the lens. Using Gaussian optics, determine the final image of the system, after two refractions (a) by a three-ray diagram and (b) by calculation.

Figure 1