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roselin
Group Title
whats the lim x goes to infinity of 2/square root of x
 one year ago
 one year ago
roselin Group Title
whats the lim x goes to infinity of 2/square root of x
 one year ago
 one year ago

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zepdrix Group TitleBest ResponseYou've already chosen the best response.0
Rose if you're not convinced, just plug a large number into your calculator to check! :) if you plug one bajillion in for x, what value do you get for the limit? \[\frac{ 2 }{ \sqrt{bajillion} }\approx \frac{ 2 }{ 999999999 } \approx 0\]
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
yeah, but do what zepdrix said only for check, because if you do this in a test for example, it will be wrong because infinity is NOT a number...
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
it is always 0 ?
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
no! it will depends on what you are taking the limit, always try to simplify the limit, try to do not have a denominator, in this case we can not simplify so we do this
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
i am trying to solve this problem where x goes to infinity 2+square root of x/ 2 square root of x
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
i am getting the answer as 1, is it right?
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
\[\lim_{x \rightarrow \infty}\frac{2+\sqrt{x}}{2\sqrt{x}}\]
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
this one?
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
the limit is equal to 1
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
have you already study L'hospital rule ?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
can you please explain how you got 1?
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
ok let me explain
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
dw:1350703643878:dw
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
got it?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
what did you do with the whole numerator thing? u ended up with X
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
when x goes to infinity, the other terms with lower power we take them off, and stay only with the higher terms them simply if possible and aply the limit
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
i will post how i got the numerator
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
ohh , u mean the limit of 4 and 4 sqrt x = 0?
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
dw:1350704041192:dw
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
no this i simply take them out because comparing with infinity they make no difference
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
when you deal with limits on the infinity you can make this assumptions
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
but take care...
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
when you see L'hostpital's Rule this limits will became very easy to solve.... you will see
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
we have not gotten to that yet.
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
if you do not mind then, I have one more problem. would you explain that one?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
lim sec x x goes to( pi/2)^+
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
let me solve here one moment
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
it is equal to infinity, i will draw here
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
dw:1350704691784:dw
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
is it clear?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
yes,viewing it.
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
see, when we have something divide by a number really really really small them it becomes a really really really large number so the limit tends to the infinity
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
okay, but how did you get that 10?
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
it is just a notation for this: 0.00000000000000000000000...00000000000001, then we represent this really small or large number with 10 power
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
oh ,okay. got it.
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
that (pi/2)^+ is the same as (pi/2)?
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
ALMOST the same, when we have this + is a little more than pi/2
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
pi/2, sorry
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
so, the asnwer will be the same one right?
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
no, because if we take 1/0 it is not allowed. But 1/0.00000000001 is allowed
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
we can not divide by 0, NEVER
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
yes,that is true.
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
so you got it?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
Thank you soooo much.
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
good night, byee
 one year ago

JoãoVitorMC Group TitleBest ResponseYou've already chosen the best response.1
good, bye
 one year ago
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