State the geometrical meaning of the constants involved in `x/a + y/b = 1`

What is the meaning of constant of a spring?

The geometric mean between -9 and -16 is

What is geometrical meaning of angular momentum in two dimensions?

Name the states involved in Ganga Action Plan.

If G is the geometric mean between two distinct positive numbers a and b, then show that 1/(G-a)+1/(G-b)=1/G .

Form a differential equation representing the given family of curves by eliminating arbitrary constants a and b: x/a + y/b = 1

a, b, c are the first three terms of a geometrical series. If the harmonic mean of a and b is 12 and that of b and c is 36, find the first five terms of series.