(III). Let p, q, and r be propositional variables. to show that following logic equivalence. e propositional variables. Use truth table and equivalence rules (p+q)^(+r)) + (p+1)=T (1) truth table: A (T)) + ( PT ) P9P49-Prp9) A ( TTF TFITI F TT FTF FFT FFF (2) equivalence rules