jee-main 2019 Q62

jee-main · India · session2_09apr_shift1 Complex Numbers Argand & Loci Circle Equation and Properties via Complex Number Manipulation

All the points in the set $S = \left\{ \frac { \alpha + i } { \alpha - i } , \alpha \in R \right\} , i = \sqrt { - 1 }$ lie on a
(1) straight line whose slope is - 1
(2) circle whose radius is $\sqrt { 2 }$
(3) circle whose radius is 1
(4) straight line whose slope is 1

All the points in the set $S = \left\{ \frac { \alpha + i } { \alpha - i } , \alpha \in R \right\} , i = \sqrt { - 1 }$ lie on a\\
(1) straight line whose slope is - 1\\
(2) circle whose radius is $\sqrt { 2 }$\\
(3) circle whose radius is 1\\
(4) straight line whose slope is 1

Paper Questions

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