Prove that, in an ellipse, the distance between the centre and any normal does not exceed the difference between the semi-axes of the curve.

One difference between a cancer cell and a normal cell is

Find the equation of an ellipse the distance between the foci is 8 units and the distance between the directrices is 18 units.

Is there any difference between Å and A.U.?

In an ellipse the distance between the foci is 8 and the distance between the directrices is 25. The length of major axis, is

If the distance between the directrices is thrice the distance between the foci, then find eccentricity of the ellipse.

Give any three differences between an artery and a vein.

What is the difference between centre of mass and centre of gravity?

Prove that the distance between the origin and the point (-6, -8) is twice the distance between the points (4, 0) and (0, 3).

In an ellipse the distance between the foci is 8 and the distance between the directrices is 25, then the ratio of the length of major and minor axis is

Show that the area between the curve y=ce^(2x) , the x-axis and any two ordinates is proportional to the difference between the ordinates, c being constant.