. If A ={ 1, 2, 5, 8 } , B= { 5, 7} and C= {1, 4, 5} then A∩B∩C = ?
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Answer:5
Step-by-step explanation:
by associative law:
(A∩B)∩C=A∩(B∩C)
A∩B=5
(A∩B)∩C=5
B∩C=5
A∩(B∩C)=5
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