CircleHard
Question
Identify the correct statement(s) -
Options
A.In a parabola vertex is the mid point of focus and foot of directrix.
B.P(at12, 2at1) & Q(ar22, 2at2) are two points on y2 = 4ax such that t1t2 = -1, then normals at P and Q are perpendicular.
C.There doesn’t exist any tangent of y2 = 4ax which is parallel to x-axis.
D.At most two normals can be drawn to a parabola from any point on its plane.
More Circle Questions
If a2 + b2 = 1, m2 + n2 = 1, then which of the following is true for all values of m, n, a, b -...Consider the figure and find radius of bigger circle. C1 is centre of bigger circle and radius of smaller circle is unit...A variable circle is drawn to touch the x-axis at the origin. The locus of the pole of the straight line lx + my + n = 0...Consider the equation of a parabola y2 = 4ax, (a < 0) which of the following is false -...If the lines 2x + 3y + 1 = 0 and 3x - y - 4 = 0 lie along diameters of a circle of circumference 10π, then the equa...