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# Find the Slope of a Tangent Line Using the Chain Rule

APCALC-5XFUMN

The slope of the line tangent to the graph of $y=\ln(x^3)$ at $x=e^3$ is:

A

$\cfrac{1}{e^9}$

B

$\cfrac{1}{e^6}$

C

$\cfrac{3}{e^3}$

D

$\cfrac{3}{e^9}$