Let `C_1` be the graph of `xy=1` and the reflection of `C_1`, in the line `y= 2x` is `C_2`. If the equation of `C_2` is expressed as `12x^2 + bx y +cy^2 + d = 0` then (bc) is equal to

Let C_(1) be the graph of xy=1 and the reflection of C_(1) in the line y=2x is C_(2) . If the equation of C_(2) is expressed as 12x^(2)+bxy+cy^(2)+d=0 , then the value of (b+c+d) is equal to

Let C_(1) be the graph of xy=1 and the reflection of C_(1), in the line y=2x is C_(2) .If the equation of C_(2) is expressed as 12x^(2)+bxy+cy^(2)+d=0 then (bc) is equal to

Let A B C be a triangle. Let A be the point (1,2),y=x be the perpendicular bisector of A B , and x-2y+1=0 be the angle bisector of /_C . If the equation of B C is given by a x+b y-5=0 , then the value of a+b is (a)1 (b) 2 (c) 3 (d) 4

Let A B C be a triangle. Let A be the point (1,2),y=x be the perpendicular bisector of A B , and x-2y+1=0 be the angle bisector of /_C . If the equation of B C is given by a x+b y-5=0 , then the value of a+b is (a) 1 (b) 2 (c) 3 (d) 4

Let A B C be a triangle. Let A be the point (1,2),y=x be the perpendicular bisector of A B , and x-2y+1=0 be the angle bisector of /_C . If the equation of B C is given by a x+b y-5=0 , then the value of a+b is (a) 1 (b) 2 (c) 3 (d) 4

Let A B C be a triangle. Let A be the point (1,2),y=x be the perpendicular bisector of A B , and x-2y+1=0 be the angle bisector of /_C . If the equation of B C is given by a x+b y-5=0 , then the value of a+b is (a) 1 (b) 2 (c) 3 (d) 4

If one of the lines given by 6x^(2) - xy + 4cy^(2) = 0  is 3x + 4y = 0 then c equals

If graph of xy = 1 is reflected in y = 2x to give the graph 12x^(2) +rxy +sy^(2) +t = 0 , then