" 9."2x^(2)+2y^(2)-x=0

If x=9 is the chord of contact of the hyperbola x^(2)-y^(2)=9 then the equation of the corresponding pair of tangents is (A)9x^(2)-8y^(2)+18x-9=0(B)9x^(2)-8y^(2)-18x+9=0(C)9x^(2)-8y^(2)-18x-9=0(D)9x^(^^)2-8y^(^^)2+18x+9=0'

The centres of the three circles x^(2)+y^(2)-10x+9=0, x^(2)+y^(2)-6x+2y+1=0, x^(2)+y^(2)-9x-4y+2=0 lie on the line

The internal centre of similitude of the two circles x^(2)+y^(2)+6x-2y+1=0, x^(2)+y^(2)-2x-6y+9=0 is

The internal centre of similitude of the two circles x^(2)+y^(2)+6x-2y+1=0, x^(2)+y^(2)-2x-6y+9=0 is

The internal centre of similitude of the two circles x^(2)+y^(2)+6x-2y+1=0 , x^(2)+y^(2)-2x-6y+9=0 is

The radical centre of the circles x^(2)+y^(2)=9 , x^(2)+y^(2)-2x-2y-5=0 , x^(2)+y^(2)+4x+6y-19=0 is A) (0,0) (B) (1,1) (C) (2,2) (D) (3,3)

Consider the circle x^(2)+y^(2)=9 and x^(2)+y^(2)-10x+9=0 then find the length of the common chord of circle is

The external centre of similitude of the two circles x^(2)+y^(2)-2x-6y+9=0, x^(2)+y^(2)=4 is

The external centre of similitude of the two circles x^(2)+y^(2)-2x-6y+9=0, x^(2)+y^(2)=4 is