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Goten77 Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits_{}^{}\frac{ x }{ \sqrt{x ^{2}+4x+3}}dx =\int\limits \frac{ x }{\sqrt{ (x+2)^{2}1}}\]
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
i got a little bit more work so far hold on
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
x+2 = sec(x) is what im told to do.. and i get this then x= sec(x)2
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
i would have written x = A d/dx (x^2+4x+3) + B find A,B , then separate the denominator.... but i still have to figure out the best way....
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
dx=sec(beta)tan(beta)d(beta) ^ yes i forgot to change betas and x symbols but .... ya kno what i meant XD
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
if you are told to substitute that , then did u get (sec 2) sec ?
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits_{}^{}\frac{ \sec(u)2 }{ \sqrt{\sec(u)^{2}}1 }\sec(u)\tan(u)du\]
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
the 1 is inside the sqrt sign and sec^2 1 =... ?
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
dw:1356259318789:dw
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
dw:1356259400708:dw
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
[sec (theta)2 ] not sec(theta2)
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
dw:1356259463598:dw
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
yup. go ahead
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
both integrals are standard
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
dw:1356259538572:dw
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
and then plug back in the u substitution.....right?
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
yeah...the final answer will not look cute....
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
its a mess.... but man not sure y this calculus 2 entrance paper has this as a question..... its just long
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
long .... ? u might have started integration.....
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
u got this in just few steps...
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
well i had a few friends tell me bout this and how they couldn't get it... but then when i noticed there plugin in all kinds of random things for u substitution i noticed how horribly wrong they did it....but also u was kinda given so.... XD not sure how this is a hard question but there making it required at our ACC to do this ... i guess its to see how well our cal 1 professors taught us or to see if kids can follow directions..... i mean come on ur given all the hard things to solve
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
btw could this be done using integration by parts? * i havent dont this for like 2 years and forgot really how it works... but soemthing like this* dw:1356260012904:dw
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
this particular example ? no, for integration by parts, u need 2 different functions, like trigo and algebraic or expo. and trigo. .... this only has algebraic b4 substitution and trigo. after substitution....so no.
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
hmm ....yep i totally forgot all that XD oh well ill just have to refresh on it when i do cal 2
 one year ago
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