How many rows appear in a truth table for each of these compound propositions?

Solution :Step 1 :The objective of this question is to find the number of rows in given compound proposition .Step 2 :To find the number of rows in the truth table use the following statement , here n is the no. of proposition .Number of rows = 2nEach symbol can take two value (either true or false ), since there are only three symbol (a,b,c), then the number of rows is 8 = 23Step 3 : in this statement p has only one symbol ,So, the number of rows = 21 = 2 rows