MACM 101 Certification Exam Questions and CORRECT Answers
Lecture 14: Relations The connection between things or people Cartesian Product The Cartesian product of sets A and B, denoted by A × B, is the set of all *ordered pairs* of elements from A and B A × B = { (a,b) | a ∈ A, b ∈ B } These are two dimensional Ordered pair The elements of the Cartesian product are ordered pairs. In particular, (a,b) = (c,d) if and only if a = c and b = d Its a pair of numbers that can be used to locate a point on a coordinate plane K-tuples An ordered k-tuple is the product of k sets: (a,b,c) is an ordered triple (a,b,c,d) is an ordered quadruple (a1, a2, ..., ak) a k-tuple
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