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

If t is a parameter of 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 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 b and c are lengths of the segments of any focal chord of the parabola y^(2)=4ax, then write the length of its latus rectum.

If t_(1) and t_(2) are the ends of a focal chord of the parabola y^(2)=4ax, then prove that the roots of the equation t_(1)x^(2)+ax+t_(2)=0 are real.