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The equation of a line perpendicular to ...

The equation of a line perpendicular to line `ax+by+c=0` and passing through `(a,b)` is equal to ................ A) `bx-ay=0` B) ` bx+ay-2ab=0` C) `bx+ay=0` D) `bx-ay+ 2ab=0`

A

`bx-ay=0`

B

` bx+ay-2ab=0`

C

`bx+ay=0`

D

`bx-ay+ 2ab=0`

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The correct Answer is:
A
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