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A - B reads as

publish date: 2022/07/12 12:06:00 GMT+10

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A minus B
A difference B
A excluding B
A not B

Correct Answer

A difference B

Explanation

The difference of two sets A and B in that order is the set of elements that belong to A but that do not belong to B. We denote the difference of A and B by the set A – B, and read it as “A difference B.”

Reference

Introduction to Differential Calculus (Systematic Studies with Engineering Applications for Beginners) - 2012

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