If the chord of contact of tangents from a point `P` to a given circle passes through `Q ,` then the circle on `P Q` as diameter.

The chord of contact of tangents from a point P to a circle passes through Qdot If l_1a n dl_2 are the length of the tangents from Pa n dQ to the circle, then P Q is equal to

Every chord of a circle is a diameter.

The chords of contact of the pair of tangents drawn from each point on the line 2x + y=4 to the circle x^2 + y^2=1 pass through the point (a,b) then 4(a+b) is

Draw three circles passing through the points P and Q, where PQ=4 cm

Find the points of contact Q and R of a tangent from the point P(2,3) on the parabola y^2=4xdot

Two circles with equal radii are intersecting at the points (0, 1) and (0,-1). The tangent at the point (0,1) to one of the circles passes through the centre of the other circle. Then the distance between the centres of these circles is.

From a point on the circle x^2+y^2=a^2 , two tangents are drawn to the circle x^2+y^2=b^2(a > b) . If the chord of contact touches a variable circle passing through origin, show that the locus of the center of the variable circle is always a parabola.

The chord of contact of a point P w.r.t a hyperbola and its auxiliary circle are at right angle. Then the point P lies on (a)conjugate hyperbola (b)one of the directrix (c)one of the asymptotes (d) none of these

The tangent at any point of a circle is perpendicular to the radius through the point of contact.

Draw a circle with radius 3.4 cm. Draw tangent to the circle, passing through point B on the circle, without using centre.