JEE Main 2026 — Vector Algebra Question with Solution
JEE Main 2026 (22 January Shift 1)
Question
Let and . Let the projection of the vector on the diagonal of the parallelogram ABCD be of length one unit. If , where , be the roots of the equation , then is equal to
Choose an option
Show full solutionCorrect option: A
Correct answer
A3
Step-by-step explanation
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Projection of on : .
, .
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Equation:
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Projection of on : .
, .
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Equation:
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This is a previous-year question from JEE Main 2026, 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.