set A = {(x,y)£R² : x² + y² ≤ 1}, what are the limit points of A?

here is what i did;

obviously, thats a unit disk(closed) centred at the origin, so drawing a disk on the rectangular coordinate using that radius, i found out that the neighborhood of (x,y) intersecting with A gives the whole of the disk, so the limit points (x,y) should be in [-1 , 1]....

I need a verification, thanks!

Oboi mathematics is no man's friend

olihilistic:
Oboi mathematics is no man's friend

lol, but maths is fun...

Where are all the mathematicians?

actually, i expected this.... it will be rare to see someone answer that, many run from abstract mathematics and go over to applied mathematics, my friends see me as "weird" for majoring into abstract maths.

Engineers ko? Or don't they study abstract mathematics.

they don't.