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The co-ordinates of the vertex of an equ...

The co-ordinates of the vertex of an equilateral triangle are `(2,-1)` and equation of its base is `x+y-1=0`. Find the equations of its other two sides.

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The correct Answer is:
`(sqrt(3)+1)x-(sqrt(3)-1)y=3sqrt(3)+1`;
`(sqrt(3)-1)x-(sqrt(3)+1)y=3sqrt(3)-1`
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