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In triangle ABC, the equation of the rig...

In triangle ABC, the equation of the right bisectors of the sides AB and AC are x+y=0 and y-x=0. respectively.
If `A-=(5,7)` the find the equation of side BC.

A

`7y=5x`

B

`5x=y`

C

`5y=7x`

D

`5y=x`

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The correct Answer is:
A
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