Question
For the complex number z, which of the following is true?
Answer: Option C
:
C
Let z=x+iy
Here, z+¯z=(x+iy)+(x−iy)=2x (Real)
And z¯z=(x+iy)(x−iy)=x2+y2 (Real).
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:
C
Let z=x+iy
Here, z+¯z=(x+iy)+(x−iy)=2x (Real)
And z¯z=(x+iy)(x−iy)=x2+y2 (Real).
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