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This is a course to learn mathematics FROM SCRATCH! 📢 All the info on the web: https://sites.google.com/view/etdi 📌 Frequently asked questions: https://sites.google.com/view/etdi/pr... ▶️ Useful videos: • Deduction of the COSINE THEOREM • I Show You How I Think about MATHEMATICS • What is the RADIAN? The Translator Timestamps 0:00 Intro 11:53 Point, segment, line 13:50 Angles 29:12 Pythagoras' Theorem: Demo 41:58 Sine and Cosine 1:01:19 Sine Theorem 1:30:24 Real-life problems 1:40:27 Closing Q&A