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Tactics is knowing what to do when there is something to do. Strategy is knowing what to do when there is nothing to do.


Apr
7
accepted Is limits $\lim_{x\to\infty}{(x-2)^2\over2x+1}=\dfrac{1}{2}$?
Apr
7
comment Is limits $\lim_{x\to\infty}{(x-2)^2\over2x+1}=\dfrac{1}{2}$?
@DanielFischer are you going to write it as an answer?
Apr
7
comment Is limits $\lim_{x\to\infty}{(x-2)^2\over2x+1}=\dfrac{1}{2}$?
What do you mean? I divided both numerator and dneominator by x
Apr
7
asked Is limits $\lim_{x\to\infty}{(x-2)^2\over2x+1}=\dfrac{1}{2}$?
Apr
4
accepted Solve this simple polynomial
Apr
3
comment Solve this simple polynomial
@RecklessReckoner Thank you so much, I'll look into synthetic division!
Apr
3
comment Solve this simple polynomial
@RecklessReckoner So how do you come up with $(x^2+x+1)$?
Apr
3
comment Solve this simple polynomial
What do you mean by long division? Do you mean $x^3-x^2-x-2 \over (x-2)$
Apr
3
comment Solve this simple polynomial
@MichaelHardy My brain is extremely fuzzy right now it's 2 am lol --cramming for exam
Apr
3
comment Solve this simple polynomial
I don't get it. How can you know x-2 is a factor? And if you know it's a factor, how can you come up with x^2+x+1
Apr
3
comment Solve this simple polynomial
The limit problem holds little relevance to the question
Apr
3
comment Solve this simple polynomial
It is clear, I'm only trying to figure out how I can factor out the problem so that I could obtain x-2
Apr
3
comment Solve this simple polynomial
@IanColey well, if I got (x-2). I could eliminate them. I'm trying to solve a limit problem
Apr
3
asked Solve this simple polynomial
Mar
3
accepted Is a function still a function if it doesn't have any rule?
Mar
3
comment Is a function still a function if it doesn't have any rule?
Ok then never mind the sources, a consensus has been reached. A function it is then. Can someone write the answer?
Mar
3
awarded  Commentator
Mar
3
comment Is a function still a function if it doesn't have any rule?
@ploosu2 for example: f(x)=3+2x. I don't know whether or not it's called a rule though lol
Mar
3
comment Is a function still a function if it doesn't have any rule?
@Emin Why? Can you cite any source?
Mar
3
asked Is a function still a function if it doesn't have any rule?