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[" 21.Let "PQR" be a right-angled isosce...

[" 21.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 "],[" (1) "3x^(2)-3y^(2)+8xy+20x+10y+25=0],[" (2) "3x^(2)-3y^(2)+8xy-20x-10y+25=0],[" (3) "3x^(2)-3y^(2)+8xy+10x+15y+20=0],[" (4) "3x^(2)-3y^(2)-8xy-15y-20=0]

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Let P Q R be a right-angled isosceles triangle, right angled at P(2,1)dot If the equation of the line Q R is 2x+y=3 , then the equation representing the pair of lines P Q and P R is (a) 3x^2-3y^2+8x y+20 x+10 y+25=0 (b) 3x^2-3y^2+8x y-20 x-10 y+25=0 (c) 3x^2-3y^2+8x y+10 x+15 y+20=0 (d) 3x^2-3y^2-8x y-15 y-20=0

Let P Q R be a right-angled isosceles triangle, right angled at P(2,1)dot If the equation of the line Q R is 2x+y=3 , then the equation representing the pair of lines P Q and P R is (a) 3x^2-3y^2+8x y+20 x+10 y+25=0 (b) 3x^2-3y^2+8x y-20 x-10 y+25=0 (c) 3x^2-3y^2+8x y+10 x+15 y+20=0 (d) 3x^2-3y^2-8x y-15 y-20=0

Let P Q R be a right-angled isosceles triangle, right angled at P(2,1)dot If the equation of the line Q R is 2x+y=3 , then the equation representing the pair of lines P Q and P R is (a) 3x^2-3y^2+8x y+20 x+10 y+25=0 (b) 3x^2-3y^2+8x y-20 x-10 y+25=0 (c) 3x^2-3y^2+8x y+10 x+15 y+20=0 (d) 3x^2-3y^2-8x y-15 y-20=0

Let P Q R be a right-angled isosceles triangle, right angled at P(2,1)dot If the equation of the line Q R is 2x+y=3 , then the equation representing the pair of lines P Q and P R is 3x^2-3y^2+8x y+20 x+10 y+25=0 3x^2-3y^2+8x y-20 x-10 y+25=0 3x^2-3y^2+8x y+10 x+15 y+20=0 3x^2-3y^2-8x y-15 y-20=0

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