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OpenStudy (anonymous):
Ln(x/x-7)+Ln(x+7/x)-Ln(x^2-49)
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OpenStudy (bahrom7893):
that's a nice equation. What do we do with it?
OpenStudy (bahrom7893):
lnx-ln(x-7)+ln(x+7)-lnx-(ln(x-7)+ln(x+7)
OpenStudy (bahrom7893):
-ln(x-7)+ln(x+7)-ln(x-7)-ln(x+7)=-2ln(x-7)
OpenStudy (bahrom7893):
=ln(1/(x-7)^2)
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