" 5."5x^(2)+5y^(2)-7y+3x+2=0

The locus of a point which moves so that the ratio of the length of the tangents to the circles x^(2)+ y^(2)+ 4x+3 =0 and x^(2)+ y^(2) -6x +5=0 is 2 : 3 is a) 5x^(2) +5y^(2) - 60x +7=0 b) 5x^(2) +5y^(2) +60x -7=0 c) 5x^(2) +5y^(2) -60x -7=0 d) 5x^(2) +5y^(2) +60x +7=0

If the distance from P to the points (5,-4),(7,6) are in the ratio 2:3 ,then the locus of P is 5x^(2)+5y^(2)-12x-86y+17=0 , 5x^(2)+5y^(2)-34x+120y+29=0, 5x^(2)+5y^(2)-5x+y+14=0 3x^(2)+3y^(2)-20x+38y+87=0

Find the angle between the straight lines represented by 2x^(2)+5xy+2y^(2)-5x-7y+3=0

the radical axis of the circles x^(2) + y^(2) + 3x + 4y - 5 = 0 " and " x^(2) + y^(2) - 5x + 5y - 6 = 0 is

the slope of the radical axis of the circles x^(2) + y^(2) + 3x + 4y - 5 = 0 " and " x^(2) + y^(2) - 5x + 5y - 6 = 0 is

If 2x^(2)+2y^(2) +4x+5y+1=0 and 3x^(2)+3y^(2)+6x -7y+3k=0 are orthogonal ,then value of k is

Find the like terms in the following 9x^(2)y, 5x, 7y^(2), - 3x^(2), - 5x, 9xy, 11y^(2) .

The radical axis of circles x^(2) + y^(2) + 5x + 4y - 5 = 0 and x^(2) + y^(2) - 3x + 5y - 6 = 0 is

find dy/dx 5x^2+5y^2-7y+3x=2 ,