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

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

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

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

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

walters
 2 years 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
 2 years 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
 2 years ago
Best ResponseYou've already chosen the best response.3also you must know all the properties beforehand ...
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