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amorfide
Group Title
is anyone able to do a quick lesson on integration by parts?
 2 years ago
 2 years ago
amorfide Group Title
is anyone able to do a quick lesson on integration by parts?
 2 years ago
 2 years ago

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experimentX Group TitleBest ResponseYou've already chosen the best response.1
let \( u \) and \(v\) be two functions of x, \[ \int u(x) \; v(x) \;dx = u(x) \int v(x) dx  \int {d\over dx}u(x) \left [ \int v(x) dx \right ] dx \\= v(x) \int u(x) dx  \int {d\over dx}v(x) \left [ \int u(x) dx \right ] dx\] Rest is pratice!!
 2 years ago

amorfide Group TitleBest ResponseYou've already chosen the best response.0
dw:1350493812184:dw is that the integral of the derivative of v(x)? lol
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.1
try few examples dw:1350493861755:dw
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.1
yeah ... but that is multiplied by another integral ... and dx appears at last.
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.1
dw:1350494046804:dw
 2 years ago

amorfide Group TitleBest ResponseYou've already chosen the best response.0
so in words it would be (second x integral of first)  (integral of (derivative of second x integral of first))
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.1
yep .. you can interchange first and second though. suit yourself according to the problem.
 2 years ago
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