JEE Main 2012 — Functions Question with Solution
JEE Main 2012 (19 May Online)
Question
If denotes the set of all subsets of a given set , then the number of one-to-one functions from the set to the is
Choose an option
Show full solutionCorrect option: C
Correct answer
C336
Step-by-step explanation
Let
Now, set of all subsets of total no. of subsets
Now, number of one-to-one functions from
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This is a previous-year question from JEE Main 2012, covering the Functions chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.