If `A B` is a focal chord of `x^2-2x+y-2=0` whose focus is `S` and `A S=l_1,` then find `B Sdot`

If PSQ is a focal chord of the ellipse 16x^2+25y^2=400 such that SP=8, then find the length of SQ. is (a) 1 (b) 2 (c) 3 (d) 4

If PQ is the focal chord of parabola y=x^(2)-2x+3 such that P-=(2,3) , then find slope of tangent at Q.

If (2,-8) is at an end of a focal chord of the parabola y^2=32 x , then find the other end of the chord.

The coordinates of the ends of a focal chord of the parabola y^2=4a x are (x_1, y_1) and (x_2, y_2) . Then find the value of x_1x_2+y_1y_2 .

The focal chord of the parabola y^2=a x is 2x-y-8=0 . Then find the equation of the directrix.

If P S Q is a focal chord of the parabola y^2=8x such that S P=6 , then the length of S Q is (a)6 (b) 4 (c) 3 (d) none of these

Find the points on the parabola y^2-2y-4x=0 whose focal length is 6.

If the length of focal chord of y^2=4a x is l , then find the angle between the axis of the parabola and the focal chord.

If Sa n dS ' are two foci of ellipse 16 x^2+25 y^2=400a n dP S Q is a focal chord such that S P=16 , then find S^(prime)Qdot

One extremity of a focal chord of y^2 = 16x is A(1,4) . Then the length of the focal chord at A is