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

Let P be a variable point on the ellipse (x^(2))/(25)+(y^(2))/(16)=1 with foci at S and S'. Then find the maximum area of the triangle SPS'

PSQ is a focal chord of the ellipse 4x^2+9y^2=36 such that SP=4. If S' the another focus write the value of S'Q.

Column I, Column II An ellipse passing through the origin has its foci (3, 4) and (6,8). Then the length of its minor axis is, p. 8 If P Q is a focal chord of the ellipse (x^2)/(25)+(y^2)/(16)=1 which passes through S-=(3,0) and P S=2, then the length of chord P Q is, q. 10sqrt(2) If the line y=x+K touches the ellipse 9x^2+16 y^2=144 , then the difference of values of K is, r. 10 The sum of distances of a point on the ellipse (x^2)/9+(y^2)/(16)=1 from the foci is, s. 12

Let P be a variable point on the ellipse x^(2)/25 + y^(2)/16 = 1 with foci at S and S'. If A be the area of triangle PSS' then the maximum value of A, is

Let P be a variable point on the ellipse x^(2)/25 + y^(2)/16 = 1 with foci at S and S'. If A be the area of triangle PSS' then the maximum value of A, is

Let PQ be a focal chord of the parabola y^(2)=4x . If the centre of a circle having PQ as its diameter lies on the line sqrt5y+4=0 , then length of the chord PQ, is

Let PQ be a focal chord of the parabola y^(2)=4ax . If the centre of a circle having PQ as its diameter lies on the line sqrt5y+4=0 , then length of the chord PQ, is

Let L L ' be the latusrectum and S be a focus of the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2))=1 if Delta SLL' is equilaterial ,then the eccentricity of the ellispe ,is

If PQ is a focal chord of the ellipse 25 x 2 ​ + 16 y 2 ​ =1 Which passes through S=(3,0) and PS=2 then length of the chord PQ is equal to

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