Question

Give detailed Conception of : Formation of differential Equations.

Answer 1

@pooja195 @Hope_nicole

Answer 2

what are these from?

Answer 3

@pooja195 Madam plz help

Answer 4

The velocity of a body is proportional to it?s distance from O. The body starts at 1.

If x is the distance from O, then the velocity is the rate of change of distance = dx/dt

Hence dx = ?k x, where k is the constant of proportionality
dt

Now, integrating gives us: ln x = kt + c
and we know that x(0) = 1, hence 0 = 0 + c

so ln x = kt
x = ekt

Answer 5

what are these from?

Answer 6

http://www.mathsrevision.net/alevel/pages.php?page=8