Question

If A = {1, 2, 3, 4}, B = {3, 4, 5, 6} and C = {1, 2, 4, 6, 7}, then find
i) AB C
ii) AB AC ( )​

Answer 1

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(i)A×(B∩C)
∩ Intersection:common between two sets
B∩C={3,4}∩{4,5,6}={4}
A×(B∩C)=
{1,2,3}×{4}
={(1,4),(2,4),(3,4)}


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