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
- 2
- 1
- 3
- 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)
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