The distance from the foci of `P (a, b)` on the ellipse `x^2/9+y^2/25=1` are

The distance from the foci of P (x_(1), y_(1)) on the ellipse x^2/9+y^2/25=1 are

The foci of the ellipse (x^(2))/(4) +(y^(2))/(25) = 1 are :

Prove that the product of the distances of the foci from any tangent to the ellipse x^2/a^2+y^2/b^2=1 is equal to b^2 .

The distance between the foci of the ellipse 5 x^(2)+9 y^(2)=45 is

The distance between the foci of the ellipse 5x^(2)+9y^(2)=45 is

Let d be the perpendicular distance from the centre of the ellipse x^2/a^2+y^2/b^2=1 to the tangent drawn at a point P on the ellipse. If F_1 & F_2 are the two foci of the ellipse, then show the (PF_1-PF_2)^2=4a^2(1-b^2/d^2) .

Let d be the perpendicular distance from the centre of the ellipse x^2/a^2+y^2/b^2=1 to the tangent drawn at a point P on the ellipse. If F_1 & F_2 are the two foci of the ellipse, then show the (PF_1-PF_2)^2=4a^2[1-b^2/d^2] .

Let d be the perpendicular distance from the centre of the ellipse x^2/a^2+y^2/b^2=1 to the tangent drawn at a point P on the ellipse. If F_1 & F_2 are the two foci of the ellipse, then show the (PF_1-PF_2)^2=4a^2[1-b^2/d^2] .