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 AB is a focal chord of x^(2)-2x+y-2=0 whose focus is S and AS=l_(1), then find BS .

Consider a parabla y^(2)=8x . If PSQ is a focal chord of the parabola whose vertex is A and focus S,V being the middle point of the chord such that PV^(2)=AV^(2)+lamda.AS^(2) where lamda is______

Consider a parabla y^(2)=8x . If PSQ is a focal chord of the parabola whose vertex is A and focus S,V being the middle point of the chord such that PV^(2)=AV^(2)+lamda.AS^(2) where lamda is______

If PSQ is a focal chord of a parabola y^(2)=6x , where S is the focus.Then the minimum value of PS.QS is

If PQ is a focal chord of the parabola y^(2)=4ax with focus at s, then (2SP.SQ)/(SP+SQ)=

Let PQ be a focal chord of (x^(2))/(9)+(y^(2))/(4)=1 passing through one focus S and S' be its other focus,then the value of semi-perimeter of Delta S'PQ is

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

If PSQ is focal chord of parabola y^(2)=4ax(a>0), where S is focus then prove that (1)/(PS)+(1)/(SQ)=(1)/(a)

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