Skip to main content
12. Techniques of Integration
12. Techniques of Integration / Improper Integrals / Problem 9
Problem 9

Evaluate the improper integral 18tan1x1+x2dx\(\displaystyle\) \(\int\)_1^{\(\infty\)} \(\frac{8 \tan^{-1}\) x}{1 + x^2} \, dx.