Answer
See step by step work for the solution
Work Step by Step
a) $(p \lor q )\lor r$
\begin{array}{c|c|c|c|c|c|c |c}
p & q & r & p \lor q & (p \lor q) \lor r \\
T & T & T & T& T \\
T & T & F & T& T\\
T & F & T & T& T\\
T & F & F & T& T \\
F & T & T & T& T\\
F & T & F & T& T\\
F & F & T & F& T\\
F & F & F & F& F
\end{array}
b) $(p \lor q )\land r$
\begin{array}{c|c|c|c|c|c|c |c}
p & q & r & p \lor q & (p \lor q) \land r \\
T & T & T & T& T \\
T & T & F & T& F\\
T & F & T & T& T\\
T & F & F & T& F \\
F & T & T & T& T\\
F & T & F & T& F\\
F & F & T & F& F\\
F & F & F & F& F
\end{array}
c)$(p \land q )\lor r$
\begin{array}{c|c|c|c|c|c|c |c}
p & q & r & p \land q & (p \land q) \lor r \\
T & T & T & T& T \\
T & T & F & T& T\\
T & F & T & F& T\\
T & F & F & F& F \\
F & T & T & F& T\\
F & T & F & F& F\\
F & F & T & F& T\\
F & F & F & F& F
\end{array}
d)$(p \land q )\land r$
\begin{array}{c|c|c|c|c|c|c |c}
p & q & r & p \land q & (p \land q) \land r \\
T & T & T & T& T \\
T & T & F & T& F\\
T & F & T & F& F\\
T & F & F & F& F \\
F & T & T & F& F\\
F & T & F & F& F\\
F & F & T & F& F\\
F & F & F & F& F
\end{array}
e)$(p \lor q )\land \neg r$
\begin{array}{c|c|c|c|c|c|c |c}
p & q & r & p \lor q &\neg r& (p \lor q) \land r \\
T & T & T & T& F& F \\
T & T & F & T& T&T\\
T & F & T & T& F&F\\
T & F & F & T& T&T \\
F & T & T & T& F&F\\
F & T & F & T& T&T\\
F & F & T & F& F&F\\
F & F & F & F& T&F
\end{array}
f)$(p \land q )\lor \neg r$
\begin{array}{c|c|c|c|c|c|c |c}
p & q & r & p \land q&\neg r & (p \land q) \lor \neg r \\
T & T & T & T& F&T \\
T & T & F & T& T&T\\
T & F & T & F& F&F\\
T & F & F & F& T& T\\
F & T & T & F& F&F\\
F & T & F & F& T& T\\
F & F & T & F& F&F\\
F & F & F & F& T&T
\end{array}