Exam2025Proposed solution included

CSC 209 Mathematical Foundation of Computer science Exam 2025

CSC 209: End of Semester Examination, 12 February 2025 (2hr, 70 marks printed but summing to 80 -- flagged), University of Buea, Faculty of Science, Dept of Computer Science: a 49-item multiple-choice section covering propositional logic, tautology/contradiction/contingency, De Morgan's law, converse/inverse/contrapositive, predicate logic and quantifiers, set theory, and functions/inverses (one item flagged as having two defensible true options under material implication; one item flagged as a likely 'or'/'and' negation typo repeated across all its options); Section B, a composition-of-functions problem, an equivalence-relation/classes proof (typo'd variable read as the evident intended one), a $\mathbb{Z}_6$ equation cross-referenced to Paper 17 as having no solution, a 3-set Venn diagram (course enrollment, with a tikz diagram), a finite-state-machine 5-tuple definition with a tikz transition diagram (no accepting state shown in source, flagged), a floor-recursion sequence evaluation, and a guess-and-prove-by-induction linear-recurrence problem.

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University of Buea

Faculty of Science - FS

Computer Science - CSC

CSC2092025

Mathematical Foundation of Computer science

Exam · First Semester · Level 200

From this paper

1.
Which of the following statements is a proposition? A: How old are you? B: It is raining C: Where are you going to? D: I wish it were raining E: None of these.
2.
Which of the following statements is the negation of the statement “4 is odd or −9 is positive”? A: 4 is even or −9 is not negative B: 4 is odd or −9 is not negative C: 4 is even or −9 is negative D: 4 is odd or −9 is negative E: None of these