Question

math grade 4 answers summative test 3rd quarter lesson ancient devices for measuring time?

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Answer 1

Answer:

In mathematics, specifically set theory, the Cartesian product of two sets A and B, denoted A × B, is the set of all ordered pairs where a is in A and b is in B. In terms of set-builder notation, that is {\displaystyle A\times B=\{\mid a\in A\ {\mbox{ and }}\ b\in B\}.}