Question Number 27045 by abdo imad last updated on 01/Jan/18
![find the value of ∫_(2/π) ^(6/π) x^3 cos([(1/x)])dx](https://www.tinkutara.com/question/Q27045.png)
$${find}\:{the}\:{value}\:{of}\:\int_{\frac{\mathrm{2}}{\pi}} ^{\frac{\mathrm{6}}{\pi}} \:{x}^{\mathrm{3}} \:{cos}\left(\left[\frac{\mathrm{1}}{{x}}\right]\right){dx} \\ $$
find-the-value-of-2-pi-6-pi-x-3-cos-1-x-dx-