Question

Find the value of the integral that converges. ∫^[infinity]_10 x^-1 dx.

Answer 1

This integral diverges.

$\displaystyle\int_{10}^\infty\frac{\mathrm dx}x=\lim_{t\to\infty}\ln|x|\bigg|_{10}^t=\lim_{t\to\infty}\ln t-\ln10=\infty$