Exercise 1.61. Prepare truth tables for the following statement patterns.2. Examine whether each of the following statement patterns is a tautology, a contradiction or a contingency3. Prove that each of the following statement pattern is a tautology.4. Prove that each of the following statement pattern is a contradiction.5. Show that each of the following statement pattern is a contingency.6. Using the truth table, verify7. Prove that the following pairs of statement patterns are equivalent.