## Minimum value

**Example. **

For any complex number z, the minimum value of is:

a) 0

b) 1

c) 2

d) none of these.

**Solution.**

We have for ,

Thus, the required minimum value is 2 and it is attained for any z lying on the segment joining and .

**Answer. Option C.**

More later,

Nalin Pithwa

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