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roselin
Group Title
evaluate indefinite integrals
integral squareroot x^4/ x^31 dx
 one year ago
 one year ago
roselin Group Title
evaluate indefinite integrals integral squareroot x^4/ x^31 dx
 one year ago
 one year ago

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

RadEn Group TitleBest ResponseYou've already chosen the best response.2
is the x^31 in the sqrt also or no ??
 one year ago

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

RadEn Group TitleBest ResponseYou've already chosen the best response.2
dw:1355676028137:dw
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
now, use int by subs let u=x^31 du = 3x^2 dx or x^2 dx = 1/3 du continue it.....
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
1/3 intergral 1/ sqrt of u * du
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
miss () sign, how come this ?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
i took du as 3x^2
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
derivative of x^3 is 3x^2, right ?
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
so, why becomes () ?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
well, i wrote the problem as 1x^3 instead of x^3 1
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
lol, hahaha...
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
so, the original problem is over x^31 or 1x^3 ?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
it is x^3 1
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
ok, therefore the integration can be dw:1355676826761:dw
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
i just gave u +c :), for the rest let try it
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
u= x^3 1 here
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
because i have saw ur problem is .... over x^31, but experiment gave u 1x^3
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
and i put it in the wolfram thing, got some different ans
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
what's the result of int above, dont use wolfram first
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
(u) ^1/2 +1/ 1/2+1
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
where is the 1/3 ?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
What do I do with that 1/3?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
can you please write down the whole problem and show how it works, if you do not mind then
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
i am kind of confused
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
dw:1355677696473:dw
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
how did u get that 2u?
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
1/(1/2 + 1) = 1/(1/2) = 1 * 2/1 = 2 right ?
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
yeah, sorry
 one year ago

roselin Group TitleBest ResponseYou've already chosen the best response.0
i have another problem, will you guide me through that one? i will try solving it and show it to you.
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
nopes... now, subtitute back that u=x^31 so, the answer be 2/3 (x^31)^(1/2) + c or 2/3*sqrt(x^31) + c
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.2
wolfram is same with the answer above :)
 one year ago

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

RadEn Group TitleBest ResponseYou've already chosen the best response.2
very welcome
 one year ago
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