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Apr
21
comment 1 to the power of infinity, why is it indeterminate?
Yup. T'was my intention too ^^ .
Apr
21
comment 1 to the power of infinity, why is it indeterminate?
Correction: as x -> 1; not -> 0.
Apr
6
comment Problem understanding the Axiom of Foundation
It's 3 am over here and this makes sense... scary. I sort of get it now, though. There must be (a) 'most elementary composition part(s)' for a set; something that can't be broken down further into a kind that can belong to the big set, or something like that.
Apr
5
comment Problem understanding the Axiom of Foundation
If I may ask, which member of $x$ doesn't intersect it? Complete math beginner here (came here after reading something about Haskell; I just want a pointer to which element you mean).
Sep
24
awarded  Autobiographer
Aug
2
awarded  Teacher
May
18
comment Signs in binomial expansions
Thank you; the gears clicked into place! Once the exams are over, I'll put on an answer that's -hopefully- as intuitive as I get it now.
May
18
awarded  Supporter
May
12
comment Signs in binomial expansions
That doesn't tell why it was decided (apparently, that's how I was given it) that such terms, at face value, need the expansion with opposite signs. I added an (*) in the \$\$ so see there for what I meant.
May
12
asked Signs in binomial expansions
May
12
comment Conditions on roots of a quadratic
Tomorrow's the exam. I'm keeping all this in mind and hoping for he best...
May
12
awarded  Scholar
May
12
accepted Conditions on roots of a quadratic
Apr
15
comment Conditions on roots of a quadratic
let us continue this discussion in chat
Apr
15
comment Conditions on roots of a quadratic
@KannappanS, Discriminant! I wrote it the other way as I remembered its pronunciation in class... So many faults in my educational system... Anyway, it's ($\Delta = b^2-4ac$).
Apr
15
comment Conditions on roots of a quadratic
He asked for my trial on the second one and so I did... I never intended it to be un-respectful and I knew it doesn't work in questions yet I only wanted it visible as the answer he requested.
Apr
15
awarded  Commentator
Apr
15
comment Conditions on roots of a quadratic
Now what? {Extra Characters}
Apr
15
revised Conditions on roots of a quadratic
Answer 1
Apr
15
comment Conditions on roots of a quadratic
I tried it with the second and can't get the $x$ and $n+3$ out... Where can I post a photo?