show that A intersection B =A intersectionC need not to imply B=C
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Step-by-step explanation:
A=1,2,3,4,5,6,7
B=2,3,5,6,7
C=1,2,3,5,6,7
a intersection b=2,3,5,6,7
a intersection c=2,3,5,6,7
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