Let z be a complex number | Complex Number | JEE MAIN 2020

JEE MAIN 2020

09-01-20 S1

Question

Let z be a complex number such that $\left|\frac{z-i}{z+2 i}\right|=1$ and $|z|=\frac{5}{2}$. Then the value of $|z+3 i|$ is

Select the correct option:

A

$2 \sqrt{3}$

B

$\frac{7}{2}$

C

$\sqrt{10}$`

D

$\frac{15}{4}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Mathematics

Medium

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