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Mathematics 8 Online
OpenStudy (anonymous):

need help on the attachment

OpenStudy (anonymous):

OpenStudy (anonymous):

\[y'=x^{-x^2} (-x-2 x \text{Log}[x]) \]\[\int\limits x^{-x^2} (-x-2 x \text{Log}[x])dx=x^{-x^2} \]

OpenStudy (anonymous):

\[-x^{1-x^2} (1+2 \text{Log}[x]) \]is the derivative simplified.

OpenStudy (anonymous):

we haven't talk about integrals and that not one of the answer, here are the answers choices

OpenStudy (anonymous):

I forgot put one more answer which was y'(x)=-xy(2lnx+1)

OpenStudy (anonymous):

Oops I meant one more answer choice

OpenStudy (anonymous):

\[y'=x^{-x^2} (-x-2 x \text{Log}[x]) \]Replace the term in front of the left paren with y and then factor out x:\[y'=y (-x-2 x \text{Log}[x]) \]\[y'=x y (-2 \text{Log}[x]-1) \]The above is very close to #5, however there is a sign conflict with the Log term.

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