is it correct to write the symbol 'infinity' in calculation, something like this http://i.imgur.com/QXxKO.png

Question

zepdrix · Answer

No it's not proper to write it like that.
It really depends on your teacher though.
Most won't make a big deal out of it. :)

anonymous · Answer

I don't see anything wrong with it

anonymous · Answer

@zepdrix what's wrong with that

zepdrix · Answer

Infinity is not an actual value.
It's just not proper to write it like that.

It really doesn't matter though. Especially on homework and stuff, don't worry about it.
Just be aware of whether or not your teacher has a problem with it.
They probably won't care though. c:

directrix · Answer

The "lazy eight" symbol 00 (infinity) appears in limit problems such as the one you posted. When I see 00, I think "increases without bound."  See attached file. 
@artofspeed

directrix · Answer

attachment