Question

If A={1,2,3} then find A-B B-A​

Answer 1

SOLUTION

CORRECT QUESTION

If A={1,2,3} and B = { 2,3,4} then find A-B and B-A

CONCEPT TO BE IMPLEMENTED

DIFFERENCE OF SETS

If A and B are two sets then their difference is denoted by A - B and defined as

$\sf{A - B = \{x : x \in A \: , \: x\notin \: B \}}$

EVALUATION

Here the given two sets are

A= { 1,2,3 } and B = { 2,3,4}

∴ A - B = { 1 }

∴ B - A = { 4 }

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