A. 1
B. 2
C. -2
D. -5
The equations of the tangents to the circle x2+y2=16 which are inclined at an angle of 600 to the x-axis is
The common chord of x2+y2-4x-4y=0 and x2+y2=16 substends at the origin an angle equal to
The conjugate line of 3x+4y-45=0 with respect to x2+y2-6x-8y+5=0 which is perpendicular to x+y=0 is
The equation of the circle having a radius 2 and passing through the limiting points of the coaxal system x2+y2-6-2λ(x+y-4)=0 is
If the lines 2x-y+11=0, x-2y+3=0 intersecting the coordinate axes in four concyclic points then the centre of the circle passing through these four points is
The equation of the circle which touch the y-axis at a distance 4 from the origin and make an intercept 6 on the x-axis is
The circle on the chord x cos α+ y sin α=p of the circle x2+y2=r2 as diameter is
The internal centre of similitude of the two circles x2+y2+6x-2y+1=0, x2+y2-2x-6y+9=0 is
If the line x+y+1=0 touches the circle x2+y2-3x+7y+14=0, then the point of contact is
The equation of the tangents to a circle x2+y2-4x-6y-12=0 and parallel to 4x-3y=1 are