JEE Main 2018 — Complex Number Question with Solution
JEE Main 2018 (15 Apr Shift 1 Online)
Question
The set of all , for which is a purely imaginary number, for all satisfying and , is
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
If, is purely imaginary. So,
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This is a previous-year question from JEE Main 2018, covering the Complex Number 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.