JEE Main 2020MathematicsComplex NumberMediumMCQ

JEE Main 2020Complex Number Question with Solution

JEE Main 2020 (09 Jan Shift 2)

Question

If z is a complex number satisfying Rez+Imz=4, then z cannot be

Choose an option

Show full solutionCorrect option: C
Correct answer
C7

Step-by-step explanation

Let z=x+iy
i.e. x+y=4


Using perpendicular distance of line from origin, minimum value of z=22
Maximum value of z=4
So, z can’t be 7

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About this question

This is a previous-year question from JEE Main 2020, 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.