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प्रश्न
Find the number of subsets and the number of proper subsets of the following set
W = {red, blue, yellow}
उत्तर
W = {red, blue, yellow}
n(W) = 3
The number of subsets of W
= n[P(W)]
= 2m
= 23
= 8
Number of proper subsets of W
= n[P(W)] – 1
= 8 – 1
= 7
or
Number of proper subsets of W
= 2m – 1
= 23 – 1
= 8 – 1
= 7
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