Here are the solutions to the multiple-choice questions:
1. The negation of the compound statement (p∧∼q) is
Step 1: Apply De Morgan's Law to the given statement.
The negation of (p∧∼q) is ∼(p∧∼q).
According to De Morgan's Law, ∼(A∧B)≡∼A∨∼B.
Here, A=p and B=∼q.
Step 2: Substitute A and B into De Morgan's Law.
∼(p∧∼q)≡∼p∨∼(∼q)