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Let PQR be a right angled isosceles tria...

Let PQR be a right angled isosceles triangle, right angled at P(2,1). If the equation of the line QR is `2x+y=3`, then the equation representing the pair of lines PQ and PR is

A

`3x^(2)-3y^(2)+8xy+20x+10y+25=0`

B

`3x^(2)-3y^(2)+8xy-20x-10y+25=0`

C

`3x^(2)-3y^(2)+8xy+10x+15y+20=0`

D

`3x^(2)-3y^(2)-8xy-10x-15y-20=0`

Text Solution

Verified by Experts

The correct Answer is:
A
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