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RadEn Group TitleBest ResponseYou've already chosen the best response.0
integration by parts it will work
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
int (cscx)^3 = int (cscx)^2 cscx dx let u=cscx du=.... dv=(cscx)^2 dx v=int(cscx)^2 dx v=..... and next use parts rule : int(udv) = uvint(vdu)
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
but i was stuck to find int(cscx) dx, @TuringTest ^^ lol
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
i'm not sure int (cscx)dx = ln(sinx)
 2 years ago

Directrix Group TitleBest ResponseYou've already chosen the best response.2
@RadEn OpenStudy values the Learning process  not the ‘Give you an answer’ process •Don’t post only answers  guide the asker to a solution. http://openstudy.com/codeofconduct
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
\[ \int \csc ^3xdx = \int (1 + \cot^2 x) \csc x \; dx\]
 2 years ago

jaersyn Group TitleBest ResponseYou've already chosen the best response.0
is there another trig identity i'm supposed to use? usubstitution isn't working
 2 years ago

Jemurray3 Group TitleBest ResponseYou've already chosen the best response.0
There is something of a trick to this... try \[\int \frac{ \sin(x)}{\sin^2(x) } dx\]
 2 years ago

jaersyn Group TitleBest ResponseYou've already chosen the best response.0
i'm not sure how you got that
 2 years ago

jaersyn Group TitleBest ResponseYou've already chosen the best response.0
its not (cosx)^2 / (sinx)^3?
 2 years ago

Jemurray3 Group TitleBest ResponseYou've already chosen the best response.0
I'm talking about integrating cosecant.
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
use the same technique as used here http://en.wikipedia.org/wiki/Integral_of_secant_cubed
 2 years ago
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