Question

Chap 5
@kirbykirby

Answer 1

http://prntscr.com/4n31f0

Answer 2

In this case the sum of the distance of foci (s and s' ) from point B is equal to major axis

Answer 3

Is the above statement correct ?

Answer 4

Are you asking if the sum of the distance \(\overline{S'B}+\overline{BS}\) = the length of major axis?

Answer 5

Yes

Answer 6

Yes this is a property of the ellipse. Lol sorry for taking time. I wanted to find a website that had a neat animation illustrating this :) http://www.mathopenref.com/ellipse.html

Answer 7

I appreciate it

Answer 8

There are few more question.. Do you time to help me out
@kirbykirby

Answer 9

hv*

Answer 10

I have a few minutes lol

Answer 11

1)PQ is a chord of the parabola x=at^2 and y=2at, and which passes through the focus (a,0).Show that the locus of the mid-point of PQ is another parabola and hence, find its equation

Answer 12

Can you sketch the situation for me..

Answer 13

@kirbykirby

Answer 14

So I believe it's something that should look like this:
Since your parabola is parameterized that way, you should have \(y^2=4ax\)

And I believe since the chord just has to pass through the focus, and they don't specify any other point, you have to imagine an infinite amount of chords passing through the focus, and the midpoints of all of these chords form a parabola.