If a= -11/27,b= 4/9, c= -5/8, then verify that a+(b+c) = (a+b) + c
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The intersection of AVA2, ,An is denoted by In symbols, we write ... If A = {4, 5, 7, 8, 10), B = {4, 5, 9} and C = [1, 4, 6, 9), then verify that : (i)(Ar\B)nC ... Also, BnC = (4, 5, 9} n (1,4,6, 9} = {4,9} R.H.S. = A n (B n C) = (4, 5, 7, 8, 10} n (4, 9} = (4}.
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