class7 chapter 1 exercise1.1 que 1to8
If, AUB=AUC and A'UB=A'UC (A'= compliment of A)Then prove that B=C?
A={xbelong to Z :0<=x<=10} ,B={xbelong to:5<=x<=15}, C={x beolng to Z:x>=5} , D ={x belong to Z:x<=15} find 1. AUB 2.B-C 3. A-D
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