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Mathematics 17 Online
OpenStudy (anonymous):

Evaluate the limit

OpenStudy (anonymous):

\[I= \int\limits_{}^{} x^2 \ln (x^2)dx\]

myininaya (myininaya):

limit? or integral?

OpenStudy (anonymous):

haha oh integral... used to saying limit

myininaya (myininaya):

Use that ln(x^2)=2 ln(x) Then use integration by parts.

OpenStudy (anonymous):

okay I'll try that thanks

myininaya (myininaya):

\[\int\limits_{}^{}fg'=fg- \int\limits f' g\] Choose the function you take the antiderivative of to be x^2 Choose the function you take derivative of to be ln(x) At the end don't forget to bring that constant multiple 2 down :)

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