<?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>Tue, 19 May 2026 11:57:42 GMT</lastBuildDate><atom:link href="http://direct.ecency.com/@mathfortress/rss" rel="self" type="application/rss+xml"/><item><title><![CDATA[Derivatives of Trigonometric Functions (Level 2 of 2) | Examples]]></title><description><![CDATA[This video continues the lecture on the derivatives of trigonometric functions by going over 4 examples. Derivatives list mentioned in this video: #mathematics #education #school 00:00:06 | Introduction]]></description><link>http://direct.ecency.com/hive-181450/@mathfortress/derivatives-of-trigonometric-functions-level-2-of-2-or-examples</link><guid isPermaLink="true">http://direct.ecency.com/hive-181450/@mathfortress/derivatives-of-trigonometric-functions-level-2-of-2-or-examples</guid><category><![CDATA[hive-181450]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sun, 20 Jul 2025 21:22:39 GMT</pubDate><enclosure url="https://i.ecency.com/p/S5Eokt4BcQdk7EHeT1aYjzebg2hC7hkthT45e6JnYXVnJXgK89pfXiNZqG5bbp23HuFtw7U?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Derivatives of Trigonometric Functions (Level 1 of 2) | Graphical Representation]]></title><description><![CDATA[This video is a remake of an old video. This video will teach you how to find the derivative of sin of x. In addition, this video will show you the graphical representation of the derivative in action]]></description><link>http://direct.ecency.com/hive-122108/@mathfortress/derivatives-of-trigonometric-functions-level-1-of-2-or-graphical-representation</link><guid isPermaLink="true">http://direct.ecency.com/hive-122108/@mathfortress/derivatives-of-trigonometric-functions-level-1-of-2-or-graphical-representation</guid><category><![CDATA[hive-122108]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Tue, 15 Jul 2025 05:59:03 GMT</pubDate><enclosure url="https://i.ecency.com/p/S5Eokt4BcQdk7EHeT1aYjzebg2hC7hkthT45e2h2NdK4PC5gD7yeph9RPkPZqica8j5DicN?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Upgrade Complete! New Website Announcement]]></title><description><![CDATA[We are thrilled to announce the launch of our newly redesigned website, created to provide you with an improved and more streamlined learning experience. We invite you to take a tour of the new features]]></description><link>http://direct.ecency.com/hive-122108/@mathfortress/upgrade-complete-new-website-announcement</link><guid isPermaLink="true">http://direct.ecency.com/hive-122108/@mathfortress/upgrade-complete-new-website-announcement</guid><category><![CDATA[hive-122108]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Wed, 25 Jun 2025 03:28:00 GMT</pubDate><enclosure url="https://i.ecency.com/p/S5Eokt4BcQdk7EHeT1aYjzebg2hC7hkthT45e9Z8TeMtz2Ch7EMWEoTsyUTnKXcwCWAmmuY?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Mr. White Teaches Naming Acids]]></title><description><![CDATA[Welcome to our detailed guide on naming acids! In this video, we'll walk you through the fundamental rules for acid nomenclature, helping you understand how to identify and name various types of acids.]]></description><link>http://direct.ecency.com/hive-122108/@mathfortress/mr-white-teaches-naming-acids</link><guid isPermaLink="true">http://direct.ecency.com/hive-122108/@mathfortress/mr-white-teaches-naming-acids</guid><category><![CDATA[hive-122108]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sat, 13 Jul 2024 03:42:48 GMT</pubDate><enclosure url="https://i.ecency.com/p/S5Eokt4BcQdk7EHeT1aYjzebg2hC7hkthT45eNjcextwemobhsq9XForyeZiSNZFuKuErTQ?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Mr. White Teaches Naming Ionic Compounds]]></title><description><![CDATA[Mr. White Teaches Naming Ionic Compounds What You'll Learn: ►Difference between binary covalent and binary ionic compounds. ►How to identify cations and anions. ►The role of the periodic table in determining]]></description><link>http://direct.ecency.com/hive-122108/@mathfortress/mr-white-teaches-naming-ionic-compounds</link><guid isPermaLink="true">http://direct.ecency.com/hive-122108/@mathfortress/mr-white-teaches-naming-ionic-compounds</guid><category><![CDATA[hive-122108]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sat, 15 Jun 2024 19:17:24 GMT</pubDate><enclosure url="https://i.ecency.com/p/S5Eokt4BcQdk7EHeT1aYjzebg2hC7hkthT45dtCYA2jVXybhd5Ne54KmvJWwgDBjeecn9WW?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Rick and Morty Discuss the Pythagorean Theorem]]></title><description><![CDATA[This video discusses the Pythagorean Theorem. It explains the equation and goes over an example of its use in solving a side of a right triangle. Another video using AI to teach topics using TV characters.]]></description><link>http://direct.ecency.com/education/@mathfortress/rick-and-morty-discuss-the-pythagorean-theorem</link><guid isPermaLink="true">http://direct.ecency.com/education/@mathfortress/rick-and-morty-discuss-the-pythagorean-theorem</guid><category><![CDATA[education]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Mon, 08 Jan 2024 01:30:51 GMT</pubDate><enclosure url="https://i.ecency.com/p/S5Eokt4BcQdk7EHeT1aYjzebg2hC7hkthT45e7WiPsw4MV9nXXcnVEhpo24UVJQwFWaJHbU?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Walter White from Breaking Bad Teaches Chemistry]]></title><description><![CDATA[This video discusses chemical nomenclature. It explains the rules for naming simple binary covalent compounds composed of two nonmetals. It is amazing how AI tech can be used to learn from our favorite]]></description><link>http://direct.ecency.com/education/@mathfortress/walter-white-from-breaking-bad-teaches-chemistry</link><guid isPermaLink="true">http://direct.ecency.com/education/@mathfortress/walter-white-from-breaking-bad-teaches-chemistry</guid><category><![CDATA[education]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Mon, 08 Jan 2024 01:23:51 GMT</pubDate><enclosure url="https://i.ecency.com/p/S5Eokt4BcQdk7EHeT1aYjzebg2hC7hkthT45eQ2jrYnVebqL4VEcTKqVLLaeRMAfLghPBgS?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Free Calculus Readiness/Diagnostics Tests]]></title><description><![CDATA[Calling all math enthusiasts and aspiring calculus conquerors! Introducing a series of Calculus Readiness Tests - your key to unlocking the world of advanced mathematics! Whether you're planning to embark]]></description><link>http://direct.ecency.com/mathematics/@mathfortress/free-calculus-readinessdiagnostics-tests</link><guid isPermaLink="true">http://direct.ecency.com/mathematics/@mathfortress/free-calculus-readinessdiagnostics-tests</guid><category><![CDATA[mathematics]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sun, 23 Jul 2023 04:44:09 GMT</pubDate><enclosure url="https://i.ecency.com/p/YpihifdXP4WNbGMdjw7e3DuhJWBvCw4SfuLZsrnJYHEpsqZFkiGGNCQDcsQMDYA1EbbXpXascC2tfSH7Qw6sJbYEWnJeZCKYtFmxLAJSUTDaDrjHsniA1Bn686hGQqiTzMfNAGtojTzMm1bAVFLVK3JpVaYVfrG9TNajwK3nqRNv?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[ACT Practice Problems Set 1]]></title><description><![CDATA[This post contains 7 ACT Math Practice problems. Comment your answers to each of the problems. Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 Problem 6 Problem 7]]></description><link>http://direct.ecency.com/hive-122108/@mathfortress/act-practice-problems-set-1</link><guid isPermaLink="true">http://direct.ecency.com/hive-122108/@mathfortress/act-practice-problems-set-1</guid><category><![CDATA[hive-122108]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sun, 24 Jul 2022 20:14:18 GMT</pubDate><enclosure url="https://i.ecency.com/p/FUkUE5bzkAZT3HzV5tJDiU2ik81PCd4JCyhWnRcDN8XJsVFY3UNB8DCYS9PdoHr5crfjQoheiyb57dQpG8sdqGYsepGt3BbyeNzQmQAETJYtp6qq1XaSpExpcL2FGZHKk5cjSeoZXUdkeXJKjJgiezYuMw2QwbdCPyBc?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[4 Subject Math Quiz #58]]></title><description><![CDATA[Try out these 4 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Basic]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-58</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-58</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Mon, 01 Jun 2020 15:08:15 GMT</pubDate><enclosure url="https://i.ecency.com/p/cyxkEVqiiLy4DPBjkBUodgFVzaJpLatg2rKkL12dQKRs9zM7H4Qryxb9utpJmiwTtbuGGh8878Zva5peJxzoDk2wRCf9FmnLRQSgWmFUfs61QMufH5h3FhM93pk5CBTbqy8?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[4 Subject Math Quiz #57]]></title><description><![CDATA[Try out these 4 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Basic]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-57</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-57</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sun, 31 May 2020 16:05:30 GMT</pubDate><enclosure url="https://i.ecency.com/p/cyxkEVqiiLy4DPBjkBUodgFVzaJpLatg2rKkL12dQKRs9zM7H4Qryxb9utpJmiwTtbuGGh887RLdVqNwL625qPio9R8KEFVsb5MUUpMNmhrgaCPhAUMiiGmt9yMrjSqsFcJ?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[4 Subject Math Quiz #56]]></title><description><![CDATA[Try out these 4 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Basic]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-56</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-56</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sat, 30 May 2020 16:45:24 GMT</pubDate><enclosure url="https://i.ecency.com/p/cyxkEVqiiLy4DPBjkBUodgFVzaJpLatg2rKkL12dQKRs9zM7H4Qryxb9utpJmiwTtbuGGh889dVmA7h9hy57aCGw6xLjDcfSUfttEPWDSmg251hEtc4NncEGVhkGTYeiPn6?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[4 Subject Math Quiz #55]]></title><description><![CDATA[Try out these 4 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Basic]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-55</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-55</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Fri, 29 May 2020 14:53:24 GMT</pubDate><enclosure url="https://i.ecency.com/p/cyxkEVqiiLy4DPBjkBUodgFVzaJpLatg2rKkL12dQKRs9zM7H4Qryxb9utpJmiwTtbuGGh889GAggqtqzHHWXNjbRxchjUG1oMPrnqkm8b6E5wfpMFFQYUcd5MdPUfM9bjU?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[4 Subject Math Quiz #54]]></title><description><![CDATA[Try out these 4 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Basic]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-54</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-54</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Thu, 28 May 2020 14:56:57 GMT</pubDate><enclosure url="https://i.ecency.com/p/cyxkEVqiiLy4DPBjkBUodgFVzaJpLatg2rKkL12dQKRs9zM7H4Qryxb9utpJmiwTtbuGGh88AijYXiiC64eiENayx16odT75YE8tUo3GwFo532T6UGQDFLfKChimw9zqAer?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[4 Subject Math Quiz #53]]></title><description><![CDATA[Try out these 4 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Basic]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-53</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-53</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Wed, 27 May 2020 14:42:03 GMT</pubDate><enclosure url="https://i.ecency.com/p/cyxkEVqiiLy4DPBjkBUodgFVzaJpLatg2rKkL12dQKRs9zM7H4Qryxb9utpJmiwTtbuGGh8874K4G9tVDdBYivuBN2CBrnv38jycWmXBtwAWZ2wmvw4jCXSSYg6cfCDqXca?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[4 Subject Math Quiz #52]]></title><description><![CDATA[Try out these 4 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Basic]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-52</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-52</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Tue, 26 May 2020 14:37:27 GMT</pubDate><enclosure url="https://i.ecency.com/p/cyxkEVqiiLy4DPBjkBUodgFVzaJpLatg2rKkL12dQKRs9zM7H4Qryxb9utpJmiwTtbuGGh88BgntR7bWRvJRHxV77EpSqBwzVTQ3S3Cv5npL7ofNo4q1njt7waodDapiMMQ?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[4 Subject Math Quiz #51]]></title><description><![CDATA[Try out these 4 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Basic]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-51</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/4-subject-math-quiz-51</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Mon, 25 May 2020 15:25:09 GMT</pubDate><enclosure url="https://i.ecency.com/p/cyxkEVqiiLy4DPBjkBUodgFVzaJpLatg2rKkL12dQKRs9zM7H4Qryxb9utpJmiwTtbuGGh88BYBSMiYRjXb7xfPhb7mSEk465LoRZd84x4Fy5rcy4gshfqYmKGRkR4go4cE?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[3 Subject Math Quiz #50]]></title><description><![CDATA[Try out these 3 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Algebra]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/3-subject-math-quiz-50</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/3-subject-math-quiz-50</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sun, 24 May 2020 16:20:03 GMT</pubDate><enclosure url="https://i.ecency.com/p/32FTXiZsHoAWBP5L1ud1KB6iqvzEGKZ8ws1R2tB6CzqrUZhEWNEaMfB29iicLv3aehzDDhogegoSgZ7vXyHSg5xYZwPZrKNj8MmXjQredfFJskuVwUS4u2t6SG3EcnppdrWQkygmfcHRfBHp?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[3 Subject Math Quiz #49]]></title><description><![CDATA[Try out these 3 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Algebra]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/3-subject-math-quiz-49</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/3-subject-math-quiz-49</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sat, 23 May 2020 15:04:27 GMT</pubDate><enclosure url="https://i.ecency.com/p/32FTXiZsHoAWBP5L1ud1KB6iqvzEGKZ8ws1R2tB6CzqrUZhEWNEaMfB29iicLv3aehzDDhogerRrSb4NPe5JuB9mSNvbTkPJWSWj3n1TS5yMQPFgKmXBxXv6rUYFqUAd9F3mfU3A6dhvWHHp?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[3 Subject Math Quiz #48]]></title><description><![CDATA[Try out these 3 math problems one is from Algebra I (Beginning Algebra), another one from Geometry, and the last one is from Calculus I (Differential Calculus). See if you can get all 3 correct! Algebra]]></description><link>http://direct.ecency.com/hive-163521/@mathfortress/3-subject-math-quiz-48</link><guid isPermaLink="true">http://direct.ecency.com/hive-163521/@mathfortress/3-subject-math-quiz-48</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Fri, 22 May 2020 14:17:39 GMT</pubDate><enclosure url="https://i.ecency.com/p/32FTXiZsHoAWBP5L1ud1KB6iqvzEGKZ8ws1R2tB6CzqrUZhEWNEaMfB29iicLv3aehzDDhogeqyRS2VfpxJZBN6EGcMATyxpbbRaauNtxVfwSGUSdL7rXSuqEfQdSUiro2g1rjNxiQaYo2nJ?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>