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  4. If A= 1,2,4 B= 2,4,5 and C= 2,5 then (A-B) ×(B-C) is equal to

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Q. If $A=\{1,2,4\}, B=\{2,4,5\}$ and $C=\{2,5\}$, then $(A-B) \times(B-C)$ is equal to

Relations and Functions

Solution:

$A-B=\{1\}, B-C=\{4\}$
$\therefore (A-B) \times(B-C)=\{(1,4)\}$