<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[RSS Feed]]></title><description><![CDATA[RSS Feed]]></description><link>http://direct.ecency.com</link><image><url>http://direct.ecency.com/logo512.png</url><title>RSS Feed</title><link>http://direct.ecency.com</link></image><generator>RSS for Node</generator><lastBuildDate>Mon, 25 May 2026 08:58:01 GMT</lastBuildDate><atom:link href="http://direct.ecency.com/created/dtube-trigonometry/rss.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[DTube: Integral of ∫cos^3(x)dx]]></title><description><![CDATA[In this video, I work through the steps to solving the integral of cos3(x) or [cos(x)]3. Note that because cos(x) is a function of x, not a mere polynomial, we can't just use the power formula as a method]]></description><link>http://direct.ecency.com/dtube/@masterwu/vwv5n7k6</link><guid isPermaLink="true">http://direct.ecency.com/dtube/@masterwu/vwv5n7k6</guid><category><![CDATA[dtube]]></category><dc:creator><![CDATA[masterwu]]></dc:creator><pubDate>Sat, 09 Sep 2017 10:25:45 GMT</pubDate><enclosure url="https://i.ecency.com/p/6VvuHGsoU2QBxYFFLuywjgtJfwdjbpYkoiukQZZHzkRSVx7DCEGGnSS2btCodwNdZVR5DgUtJGQE5xp3bwgpJysKeFvSt2b6CwesEcuMXa1U7hTJLF1ab26Zochxyo?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>