Question

13.If a complex number Z is purely real, then
conjugate of Z is *
-Z
oz
O
0
O
None of these​

Answer 1

Answer:

Z

Step-by-step explanation:

purely real complex number have 0 imaginary part........

Answer 2

Given : complex number Z is purely real,

To Find : conjugate of Z

Solution:

Let say complex number

Z = a + ib

Then conjugate  would be

Z conjugate = a - ib

complex number Z is purely real

Hence imaginary part is zero

hence b = 0

=> Z = a  + i(0)

=> Z = a

Z conjugate = a - i(0)

=> Z conjugate = a

Z conjugate = Z  

complex number Z is purely real, then  conjugate of Z is   Z

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