Question

how to rearrenge the equation of ellipse(center 0,0)
(x/a)^2+(y/b)^2=1 -> x^2+y^2=( ) ?

Answer 1

why do u want to do that ?

Answer 2

just wondering if there is a way to compare with a circle

Answer 3

Ellipse is a circle if and only if a=b

Answer 4

so lets first take the a=b case and find the radius

Answer 5

yeah, I know that..

Answer 6

ok, then if a is not b
then you cannot compare it to a circle

Answer 7

I tried something but I got
(xb)^2+(ya)^2=(ab)2 is that right?

Answer 8

means you multiplied throughout by (ab)^2
that gives you equation of ELLIPSE only, in another form

Answer 9

alright, thank you

Answer 10

welcome ^_^