JEE Main 2012 — Determinants Question with Solution
JEE Main 2012 (12 May Online)
Question
If
then is equal to
Choose an option
Show full solutionCorrect option: C
Correct answer
C4
Step-by-step explanation
Let
Applying and
Now, applying and
On expanding, we get
Hence,
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This is a previous-year question from JEE Main 2012, covering the Determinants 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.