# What is the net area between f(x) = -xln(x^2-1)  and the x-axis over x in [2, 4 ]?

##### 1 Answer
Nov 2, 2016

Definate Integration by WolframAlpha $\approx - 12.662$

#### Explanation:

$A = {\int}_{2}^{4} \left(- x \ln \left({x}^{2} - 1\right)\right) \mathrm{dx}$