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shaqadry
 2 years ago
integrate (1x) ln x dx
shaqadry
 2 years ago
integrate (1x) ln x dx

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tomo
 2 years ago
Best ResponseYou've already chosen the best response.0break it up into two integral (ln(x)) and x(ln(x)) for the second part do a u substitution where u = ln(x); du = dx/x

tomo
 2 years ago
Best ResponseYou've already chosen the best response.0not sure if parts is necessary @TuringTest

shaqadry
 2 years ago
Best ResponseYou've already chosen the best response.1not using the udv = uv  vdu?

wio
 2 years ago
Best ResponseYou've already chosen the best response.0I think parts is best here.

TuringTest
 2 years ago
Best ResponseYou've already chosen the best response.0yes, use dv=1x and u=ln(x)

shaqadry
 2 years ago
Best ResponseYou've already chosen the best response.1can you show me the solution? i've done mine but it seems incorrect

TuringTest
 2 years ago
Best ResponseYou've already chosen the best response.0no we cannot give direct answers here, why don't you try and show us how you do?

shaqadry
 2 years ago
Best ResponseYou've already chosen the best response.1its pretty long. but my answer is ln x [ x  (x^2/2) ]  x  (x^2/4) + C

tomo
 2 years ago
Best ResponseYou've already chosen the best response.0yeah, u sub wouldn't work since u = ln(x), du = dx/x , x*du = dx.

TuringTest
 2 years ago
Best ResponseYou've already chosen the best response.0but that answer is correct :)

TuringTest
 2 years ago
Best ResponseYou've already chosen the best response.0oh I think except for a minus sign... ln x [ x  (x^2/2) ]  x + (x^2/4) + C
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