7. A = {5, 7, 9, 11, 13, 15) and B = {7, 8, 11, 15, 20} and C = {5, 8, 9, 11, 13, 15, 17, 20} Verify that: An ( BC) = (A n B) nC.
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Answer of your question:
L.H.S:
(BnC)={8,11,15,20}
An(BnC)={11,15}
R.H.S
(AnB)={11,15}
(AnB)nC={11,15}
hence proved;
L.H.S=R.H.S
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