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gvm
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does the integral x/(5x)^(1/2) dx that goes from 1 to 5 converge and if so what is the value and how do you find it?
 2 years ago
 2 years ago
gvm Group Title
does the integral x/(5x)^(1/2) dx that goes from 1 to 5 converge and if so what is the value and how do you find it?
 2 years ago
 2 years ago

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princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
\[\Large \int_1^5 \frac{x}{\sqrt{5x}}dx?\]
 2 years ago

gvm Group TitleBest ResponseYou've already chosen the best response.0
yes that's what it looks like...so does it converge? and how do you show that it converges?
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
well you do this: \[\Large \lim_{t \rightarrow 5} \int_1^t \frac{x}{\sqrt{5x}}dx\]
 2 years ago

gvm Group TitleBest ResponseYou've already chosen the best response.0
yup i have that so far :)
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
i am thinking trigonometric substitution for this...
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
dw:1337935669505:dw
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
\[\large \sqrt 5 \sin \theta = \sqrt x\] \[\large \sqrt 5 \cos \theta = \sqrt{5x}\] \[\large 5 \sin^2 \theta = x\] \[\large 10 \sin \theta \cos \theta d\theta = dx\] \[\large \int \frac{x}{\sqrt{5x}}dx = \int \frac{5\sin^2 \theta \times 10 \sin \theta \cos \theta d\theta}{\sqrt 5 \cos \theta}\] \[\large \frac{50}{\sqrt 5} \int \sin^3 \theta d\theta\] i believe that is solveable?
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
do you still need help?
 2 years ago

gvm Group TitleBest ResponseYou've already chosen the best response.0
i think i'm all set now...thank you :) i just have to ace this take home test because if i get a one hundred on it i'll get exempt from the final :D
 2 years ago

gvm Group TitleBest ResponseYou've already chosen the best response.0
thank yoouuuu! :)
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
no probs ^_^ keep practicing to see these things easier hehe
 2 years ago

gvm Group TitleBest ResponseYou've already chosen the best response.0
are you in college or high schoool?
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
college
 2 years ago

gvm Group TitleBest ResponseYou've already chosen the best response.0
neato :) where do you go?
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
probably a university you dont know lol
 2 years ago

gvm Group TitleBest ResponseYou've already chosen the best response.0
oh alright then...just curious cuz i'm starting colllege in the fall! weeee :D
 2 years ago

princeofwetlot Group TitleBest ResponseYou've already chosen the best response.0
congrats :D
 2 years ago

gvm Group TitleBest ResponseYou've already chosen the best response.0
thank you :) ughhh its sooo early where i live...i pulled an all nighter :O
 2 years ago
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