JEE Main 2005 — Vector Algebra Question with Solution
JEE Main 2005
Question
For any vectora a the value of is equal to
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Let
similarly
and
similarly
and
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This is a previous-year question from JEE Main 2005, covering the Vector Algebra 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.