Tips on problem-solving, with examples from geometry, trig, and probability. Past episodes with integrated quizzes: https://itempool.com/c/3b1b Full playlist:    • Lockdown math   Home page: https://www.3blue1brown.com/ Brought to you by you: https://3b1b.co/ldm-thanks Huge huge thanks to Ben Eater: null And Cam Christensen, creator of ItemPool: https://itempool.com/ Notes by Ngân Vũ: https://twitter.com/ThuyNganVu/status/1265480770832855040 Mistakes: 50:35, there should be a dx in the integral 54:40, if you notice the mistake here and are inclined to complain, keep watching Thanks to these viewers for their contributions to translations Hebrew: Omer Tuchfeld ------------------ Video timeline (thanks to user "noonesperfect") 0:34 9-Problem Solving Principles/Tip 1:15 Question 1 (Probability) 2:08 Who is Ben Eater? 4:25 Inscribed angle theorem, θL=2*θs 5:58 Tip-1 7:48 Tip-2 8:16 Question 2 9:34 Answer 2 10:29 Tip-3 15:17 Tip-4 22:48 Question 3 25:56 Answer 3 (Marked incorrectly, Answer: Option D) 26:31 Answer 1 27:28 Explanation for Q1, Floor function 30:38 Tip-5 32:53 Tip-6 33:36 Question 4 34:43 Answer 4 36:37 Question 5 38:10 Answer 5 41:48 Probability graph in Desmos 44:08 Revisiting an alternating series sum for ln(2) 47:29 Tip-7 51:08 Tip-8 55:23 Audience questions through tweets 57:28 Tip-9 58:29 Python programming for various probability question 1:04:31 Arts created using Desmos graph tool with mathematical expressions 1:05:54 Thank you, appreciation to the team and all. ------------------ The live question setup with stats on-screen is powered by Itempool. https://itempool.com/ Curious about other animations? https://www.3blue1brown.com/faq#manim Music by Vincent Rubinetti. Download the music on Bandcamp: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown Stream the music on Spotify: https://open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u If you want to contribute translated subtitles or to help review those that have already been made by others and need approval, you can click the gear icon in the video and go to subtitles/cc, then "add subtitles/cc". I really appreciate those who do this, as it helps make the lessons accessible to more people. ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe: http://3b1b.co/subscribe Various social media stuffs: Website: https://www.3blue1brown.com/ Twitter: https://twitter.com/3blue1brown Reddit: https://www.reddit.com/r/3blue1brown Instagram: https://www.instagram.com/3blue1brown_animations/ Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown