<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Creativity on Yu Xuan's Portfolio</title><link>https://yxlow07.github.io/tags/creativity/</link><description>Recent content in Creativity on Yu Xuan's Portfolio</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Mon, 28 Jul 2025 12:00:00 +0800</lastBuildDate><atom:link href="https://yxlow07.github.io/tags/creativity/index.xml" rel="self" type="application/rss+xml"/><item><title>Interesting Integration Problems</title><link>https://yxlow07.github.io/blog/integration/</link><pubDate>Thu, 15 May 2025 12:00:00 +0800</pubDate><guid>https://yxlow07.github.io/blog/integration/</guid><description>Introduction Integration is a core part of calculus, often presenting unique challenges that require creative ways to solve. In this post, I will share some of the interesting integration problems I have encountered, along with their solutions. Take some time to try them out before checking out my solutions!
Problem 1 Evaluate the integral within 30 seconds:
\[ \int x^\frac{1}{\ln(x)} \, dx \] Solution: $$ \begin{aligned} u &amp;= x^{\frac{1}{\ln(x)}} \\ &amp;= e^{\ln(x) \times \frac{1}{\ln(x)}} \\ &amp;= e \\ \int e \, dx &amp;= ex + C \end{aligned} $$ Problem 2 Evaluate the integral:</description></item></channel></rss>