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Algebra 16 Online
OpenStudy (anonymous):

How to integrate square root of sin(x)? indefinitely.

OpenStudy (dan815):

hmm

OpenStudy (dan815):

have u tried complexifying the function

OpenStudy (anonymous):

yes but its not working.

OpenStudy (dan815):

@ganeshie8

OpenStudy (anonymous):

\[\int\limits_{}^{} \sqrt{\sin(xdx)} \]

OpenStudy (ikram002p):

assume somthing lol mmm

hartnn (hartnn):

cannot be integrated using standard mathematical functions

OpenStudy (anonymous):

this must be a descret function as we require a continuous function to integrate indefinitely.

OpenStudy (ikram002p):

does contour work ?

OpenStudy (ikram002p):

convert it to complec then find residues at poles ?

OpenStudy (ikram002p):

ok \(\large \sin \theta =\dfrac{ z+\dfrac{ 1}{ z}}{ 2} \) mmm well that should work :D

OpenStudy (ikram002p):

typo its negative

OpenStudy (ikram002p):

ok nw its correct ^^ \(\large \sin \theta =\dfrac{ z-\dfrac{ 1}{ z}}{ 2i}\)

OpenStudy (ikram002p):

so find \(d \theta \) @dan815 you know this u should coplete it from here

OpenStudy (dan815):

tomorrow we are doing DE okay!! dont forget ikramoooo♥

OpenStudy (ikram002p):

ok i assumed u have theta not x lol so\(d\theta = dz/iz\)

OpenStudy (ikram002p):

haha dan its tomorow for me lol 14 of july

OpenStudy (dan815):

ok me tooo buts its not official till i sleep

OpenStudy (ikram002p):

*sigh* i have to wake up even thought i dint sleep -.-

OpenStudy (ikram002p):

i think the Qs been solved nw lol i gave you a hint the rest is some calculation

OpenStudy (anonymous):

Mhm not exactly sure about this one, it's not elementary. http://www.wolframalpha.com/input/?i=integrate+squareroot%28sinx%29+dx

OpenStudy (ikram002p):

i dnt feel like to continue it lol xD

OpenStudy (anonymous):

thanks

OpenStudy (ikram002p):

dnt forget to find residues u can use tylor seires to get that also when u finish if u have i in ur solution then its wrong repeat it lol

OpenStudy (anonymous):

i was wrong

OpenStudy (ikram002p):

:O u should get some pi when u recall residus :3 contour stuff lolz my brain is died to solve it you know how to find residues ? or u dint take complex integral yet ?

OpenStudy (anonymous):

i dint

OpenStudy (ikram002p):

ic mmm well idk @dan815 how to solve it with real integral ? add and sub 1 ?

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