volume_mute

A - B rule

publish date: 2022/07/13 01:55:00 GMT+10

volume_mute
  1. A – B = {x|x ∈ A, but x ∉ B}
  2. A – B = {x|x ∉ A, but x ∈ B}
a
b

Correct Answer

a

Reference

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

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