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UPSC NDA 2 2012 Mathematics Paper
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© examsnet.com
Question : 16
Total: 120
If a non-empty set
A
contains
n
elements, then its power set contains how many elements?
n
2
2
n
2
n
n
+
1
Validate
Solution:
Power set is set of all subsets
∴
no. of subsets will be
2
n
.
© examsnet.com
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