Solution
= Solution
The <function> is measurable and $0\leq\cos^2(1/x)\leq1$. The interval has finite measure, so its integral is at most one. Hence \b[it is integrable], despite its oscillations near zero.
= Solution
The <function> is measurable and $0\leq\cos^2(1/x)\leq1$. The interval has finite measure, so its integral is at most one. Hence \b[it is integrable], despite its oscillations near zero.