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Trigonometry fundamentals | Ep. 2 Lockdown live math
Intro to trig with a lurking mystery about cos(x)^2
Full playlist: https://www.youtube.com/playli....st?list=PLZHQObOWTQD
Home page: https://www.3blue1brown.com
Brought to you by you: https://3b1b.co/ldm-thanks
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Contents:
Introduction - 0:00
Q1 Graph of (cos θ)² - 2:14
Q2 Translations of cos θ to (cos θ)² - 5:34
Q3 f(2x) = f(x)² - 10:54
Intro to Trig - 13:14
Q4 sin(3) & cos(3) - 16:44
SohCahToa - 20:44
Q5 Leaning Tower - 22:29
How to Compute Trig Functions? - 30:59
Q6 sin(π/6) - 33:34
Q7 cos(π/6) - 36:19
Q8 Trig of -θ - 43:34
Computing Trig Functions - 47:44
Q9 cos(π/12) - 0:49:54
Adv Trig Functions - 0:56:44
Q10 Graph of tan(θ) - 1:00:30
JSON comment - 1:02:24
“The most exciting part of the lecture” –1:05:34
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The live question setup with stats on-screen is powered by Itempool.
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The graphing calculator used here is Desmos.
https://www.desmos.com/
Curious about other animations?
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Music by Vincent Rubinetti.
Download the music on Bandcamp:
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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.
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