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Mathematics 18 Online
OpenStudy (anonymous):

solve the question ill post to down plz :D

OpenStudy (anonymous):

\[\int\limits_{}\sqrt{\tan(angela) * \cos(angela)}*dangela\]

OpenStudy (angela210793):

=integral[sin(angela)d(angela)=-cos(angela)+c

OpenStudy (angela210793):

i have expressed tan(angela)=sin(angela)/cos(angela) the i have simplified cos(angela) in the bottom with cos(angela) up :P:P

OpenStudy (anonymous):

do not forgte sqrt...

OpenStudy (anonymous):

\[\int\limits \sqrt{sinx} dx\]

OpenStudy (angela210793):

:@@@ Sorry

OpenStudy (angela210793):

hmm i have forgotten wht Ssqr u is... Anyway u know i'm not good at integrals :P:P:P

OpenStudy (anonymous):

no i dunno :(

OpenStudy (angela210793):

let me check in my book :P

OpenStudy (anonymous):

OpenStudy (angela210793):

hmm maybe we have to express it as (sinx)^1/2 and then it is easy

OpenStudy (angela210793):

i don't get that Wht's E?

OpenStudy (anonymous):

i dun get too :P

OpenStudy (angela210793):

Lol :P:P:P I've forgotten where have i written a similar problem...wish i could find it :S

OpenStudy (anonymous):

ahh e(x I m ) is an elliptic integral of the second kind :D

OpenStudy (angela210793):

elliptic? don't get it yet

OpenStudy (anonymous):

\[E(\phi , k) >\int\limits_{0}^{\phi}\sqrt{1-k^{2}\sin^{2}\theta} *d \theta\]

OpenStudy (angela210793):

Huuuh?? O.o I maybe had an idea abt that...but now...wht's that?

OpenStudy (anonymous):

well i am trying to understand too :D

OpenStudy (angela210793):

Hahaha :D :D Tell me when u get it ::P

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