Answers

2014-05-30T21:40:35+05:30
X belongs to W means it belongs to the set of natural numbers along with 0. but x doesn't belong to natural numbers. therefore x=0.therefore number of subsets=2 and no. of proper subsets=1.
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2014-05-31T17:41:31+05:30
NUMBER OF SUBSETS = 2
NUMBER OF PROPER SUBSETS = 1
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