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Let alpha and beta be two fixed non-zero...

Let `alpha` and `beta` be two fixed non-zero complex numbers and 'z' a variable complex number. If the lines `alphabarz+baraz+1=0` and `betabarz+barbetaz-1=0` are mutually perpendicular, then

A

`ab+bar(a)bar(b)=0`

B

`ab-bar(a)bar(b)=0`

C

`bar(a)b-abar(b)=0`

D

`abar(b)+bar(a)b=0`

Text Solution

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The correct Answer is:
D
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