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,

Question 1

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) 3x2 - 3y2 + 8xy + 20x + 10y + 25 = 0

(B) 3x2 - 3y2 + 8xy - 20x - 10y + 25 = 0

(C) 3x2 - 3y2 + 8xy + 10x + 15y + 20 = 0

(D) 3x2 - 3y2 - 8xy - 10x - 15y - 20 = 0

Question 2

(B) 3x2 - 3y2 + 8xy - 20x - 10y + 25 = 0

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,

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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,

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