If `t` is the parameter for one end of a focal chord of the parabola `y^2 =4ax,` then its length is :

(A) p 2 (B) q 2 (D) q = 2p (C) p = 2q If t is the parameter for one end of a focal chord of the parabola y2 =4ax, then its length is (A) a t- 11. 2 aft. 2 (B) a t 1) C)alt+- (D) al t-

If t is a parameter of one end of a focal chord of the parabola y^(2) =4ax then its length is

If t is the parameter of one end of a focal chord of the parabola y^(2) = 4ax , show that the length of this focal chord is (t + (1)/(t))^(2) .

If (at^(2) , 2at) be the coordinate of an extremity of a focal chord of the parabola y^(2) =4ax, then the length of the chord is-

The Harmonic mean of the segments of a focal chord of the parabola y^(22)=4ax is

If t_(1) and t_(2) are parameters of the end points of focal chord for the parabola y^(2)=4ax then which one is correct ?

If athe coordinates of one end of a focal chord of the parabola y^(2) = 4ax be (at^(2) ,2at) , show that the coordinates of the other end point are ((a)/(t^(2)),(2a)/(t)) and the length of the chord is a(t+(1)/(t))^(2)

If 't_1' and 't_2' be the ends of a focal chord of the parabola y^2=4ax then t_1t_2 is equal to