MCQMediumJEE Main 2023 · 29 January, Shift 1Complex Numbers Basics

Mathematics Question from JEE Main 2023 · 29 January, Shift 1

For two non-zero complex numbers z1z_1 and z2z_2, if Re(z1z2)=0\operatorname{Re}(z_1 z_2) = 0 and Re(z1+z2)=0\operatorname{Re}(z_1 + z_2) = 0, then which of the following are possible?

(A) Im(z1)>0\operatorname{Im}(z_1) > 0 and Im(z2)>0\operatorname{Im}(z_2) > 0

(B) Im(z1)<0\operatorname{Im}(z_1) < 0 and Im(z2)>0\operatorname{Im}(z_2) > 0

(C) Im(z1)>0\operatorname{Im}(z_1) > 0 and Im(z2)<0\operatorname{Im}(z_2) < 0

(D) Im(z1)<0\operatorname{Im}(z_1) < 0 and Im(z2)<0\operatorname{Im}(z_2) < 0

Choose the correct answer from the options given below:

  • A

    B and D\text{B and D}

  • B

    B and C\text{B and C}

  • C

    A and B\text{A and B}

  • D

    A and C\text{A and C}

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