Sin(10 degrees) is irrational

Learn more math and science with brilliant.org, https://brilliant.org/blackpenredpen/ , first 200 people to sign up will get 20% off your subscription, and you can support my channel, too! Thank you! Proving sqrt(2) is irrational by using the Rational Zeros Theorem,    • Proving the square root of 2 is irrational...   hint to the problem: Vieta's Formula, https://brilliant.org/wiki/vietas-for... Read more about Niven's theorem, https://en.wikipedia.org/wiki/Niven%2... , Triple angle identity and sin(10) is irrational,    • Proving sin(10 deg) is irrational   blackpenredpen, math for fun,   / blackpenredpen  , blackpenredpen@gmail.com