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If z=-barz, then which one of the foll...

If `z=-barz,` then which one of the following is correct?

A

real part of z is zero.

B

The imaginary part of z is zero.

C

The real part of z is equal to imaginary

D

The sum of real and imaginary parts of z is z.

Text Solution

Verified by Experts

The correct Answer is:
A
Let `z=x+y then barz=x-iy`
Now `z=-barz`
`implies(x+iy)=-(x-iy)impliesx+iy=-x+iy`
`implies2x=0impliesRe(z)=0`
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NDA PREVIOUS YEARS-COMPLEX NUMBERS-Multiple choice question
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