In Exercises I- I 0. evaluate the determinant of each matrix using a cofactor expansion along rile indicmed column. second column

9/7: Chapter 2 (Continued) 1. Argument = Statement of the form (P ^ P ^1… P 2 → q, khere (P ^ P ^ … 1 2 P ) is the premises, and Q is the conclusion k P1 P2 ... Pk ∴ q i. ∴ = Therefore 2. Famous Arguments a. Modus Ponens = “Method of Affirming” (p→q) ^ p → q p→q P 1 p→q p P 2 p ∴ q Conclusion = q i. Valid because p → q ≡ p → q b. Modus Tollens = “Method of Denying” j. p→q k.