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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? \[\frac{ 2 }{ \sqrt{bajillion} }\approx \frac{ 2 }{ 999999999 } \approx 0\]
 2 years 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...
 2 years ago

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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