Show that (p r) (q r) is logically equivalent to (p q) r using both (i) (2 points) a truth table and (ii) (5 points) a chain of logical equivalences. Note that you may only use logical equivalences from Table 6 (p. 27 of Rosen textbook) and the other four named equivalences given in lecture. At each step you should cite the name of the equivalence rule you are using, and please only use one rule per step. Is this compound proposition satisfiable? Why or why not?

I only need the logical equivalences please!