If $z \in C$, then the minimum value of $|z|+|2 z-3|+|z-1|$ is

If $z \in C$, then the minimum value of $|z|+|2 z-3|+|z-1|$ is
  1. 2
  2. 1
  3. 3
  4. 0

Solution

$ \begin{aligned} & \text { }|z|+|2 z-3|+|z-1|=|z|+|3-2 z|+|z-1| \\ & \geq|z+z-1+3-2 z| \quad\left[\because\left|z_1+z_2\right| \leq\left|z_1\right|+\left|z_2\right|\right] \\ & \geq|2| \\ & \therefore \text { Minimum value of }|z|+|2 z-3|+|z-1| \text { is } 2 \end{aligned} $

Asked in: AP EAMCET 2021 (23 Aug Shift 1)

Practice more Complex Number questions on Aicharya