**Question:**

Let $z \neq-i$ be any complex number such that $\frac{z-i}{z+i}$ is a purely imaginary number.

Then $\mathrm{z}+\frac{1}{7}$ is:

Correct Option: 3

JEE Main Previous Year Online April 12, 2014

**Solution:**

Let $z \neq-i$ be any complex number such that $\frac{z-i}{z+i}$ is a purely imaginary number.

Then $\mathrm{z}+\frac{1}{7}$ is:

Correct Option: 3

JEE Main Previous Year Online April 12, 2014
**Solution:**