A. 1
B. 3
C. -3
D. 1
If P is a point on the parabola y2 = 4ax such that the subtangent and subnormal at P are equal, then the coridinate of P are
The tangents to the parabola y2 = 4ax at p (t1) and Q (t2) intersect at R. the area of Δ PQR is
The point on the parabola y2 = 36x whose oridinate is three times its abscissa is
the equation of the parabola whose axis is parallel to x –axis and passing through (- 2,1), (1,2), (-1,3) is
The length of the latus rectum of the parabola x2 + 4x – 8y + 28 = 0 is
The equation of the axis of the parabola 3x2 – 9x + 5y -2 = 0 is
The sub-tangent, ordinate and sub-normal to the parabola y2 = 4ax at a point ( diffferent from the origin ) are in
The length of the chord intercepted bt the parabola y = x2 + 3x on the line x + y = 5 is
The equation of the axis of the parabola (y + 3)2 = 4(x – 2) is
Two straight lines are perpendicular to each other. One of them touches the parabola y2 = 4a (x + a) and the other touches y2 = 4b (x + b). the locus of the point of intersectionof the two lines is