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walters
 one year ago
Best ResponseYou've already chosen the best response.1\[ \int\limits_{\pi}^{\pi}\frac{ 1}{ 1+e ^{sinx} }dx\]

walters
 one year ago
Best ResponseYou've already chosen the best response.1i only have the finaly answer (pi) but i don'tknow did they it

walters
 one year ago
Best ResponseYou've already chosen the best response.1ok maybe i don't understand u which level are u refering to?

walters
 one year ago
Best ResponseYou've already chosen the best response.1i did pure calculus now is the second level of it (which is advanced calculus)

cluo
 one year ago
Best ResponseYou've already chosen the best response.0have you done double and triple integrals? i only ask because i think i saw something similar a couple days ago.

walters
 one year ago
Best ResponseYou've already chosen the best response.1i am not sure whether this is possible The substitution of x=y yields dw:1360491262699:dw NB:not sure

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3do you know a standard integral... \(\int \limits_a^b f(x)dx =\int \limits_a^b f(a+bx)dx \)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3ok, then do you want to use this (1 method) or continue with what u did (another method) of putting x=y...

walters
 one year ago
Best ResponseYou've already chosen the best response.1any method u know u can use it i'll try to catch up

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3ok, i'll tell u both, first using your substitution x=y, dw:1360492675542:dw dw:1360492681874:dw understood till here ?

walters
 one year ago
Best ResponseYou've already chosen the best response.1ok this means i will have dw:1360492779070:dw @hartnn can u pls teach me/explain standard property

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3yes, you got it correct using your method, now the standard property... let I = integral ..... >(1) now using that property, first tell what is a+bx =.... ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3yes, so, because of that property, dw:1360493289196:dw add 1 and 2 what u get ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3umm...not actually.... dw:1360493484296:dw dw:1360493501827:dw s = sin x

walters
 one year ago
Best ResponseYou've already chosen the best response.1wow i see now so tell me how wil i know that i must use standart property

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3thats trial and error, i first thought of substitution, then recalled different properties, then this property was found to be useful...wih enough practice, this procedure becomes easy and fast...

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3also you must know all the properties beforehand ...
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