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The equations of perpendicular bisectors...

The equations of perpendicular bisectors o the sides AB and AC of a triangle ABC are `x-y+5=0\ a n d\ x+2y=0` respectively. If the point `A\ i s\ (1,-2),` find the equation of the line `B Cdot`

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The correct Answer is:
`14x+23y-40=0`
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