Please do all the questions!

Show, by using the logical equivalences in Files/Lecture Notes/logicalequivalencies, that (p(qrs))p(qsr) You must write down rule was used in each step. DO NOT SKIP STEPS Determine if each of the following statements is True or False. Assume that the domain consists of all real numbers ( R ). Justify your answer (provide a proof or a counterexample). 1. xy(x=1/y) 2. xy(y2x