In each case find a rotation or reflection that equals the given transformation.
(a) Reflection in the y axis followed by rotation through
(b) Rotation through π followed by reflection in the x axis.
(c) Rotation through π/2s followed by reflection in the line y = x.
(d) Reflection in the x axis followed by rotation through y.
(e) Reflection in the line = x followed by reflection in the x axis.
(f) Reflection in the x axis followed by reflection in the line y = x.