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If \(S=\left\{z \in C: \frac{z-i}{z+2 i} \in R\right\}\), then [JEE Main 2021, 27 Aug (Shift 1)]

Q1

If \(S=\left\{z \in C: \frac{z-i}{z+2 i} \in R\right\}\), then

[JEE Main 2021, 27 Aug (Shift 1)]

a

S is a circle in the complex plane

b

S is a straight line in the complex plane

c

S contains only one element

d

S contains exactly two elements

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