# Discrete Math

Feb 13th, 2014
Anonymous
Category:
Art Design
Price: \$10 USD

Question description

1.Suppose a, b, c, and d are integers. Prove that if a|b and c|d, then (ac)|(bd).

2. Let X be an integer. Prove that X is odd if and only if x+1 is even.

3. Disprove:If a and b are non negative integers with a|b, then a≤b.
Note: A counterexample to this statement would also be a counterexample for the previous problem, but not necessarily vice versa.

4. Disprove: If a,b,and c are positive integers with a|(bc), then a|b or a|c.

(Top Tutor) Farrukh
School: Rice University

Studypool has helped 1,244,100 students

Review from student
Anonymous
" Totally impressed with results!! :-) "

1830 tutors are online

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors