The other video deriving cot(x):
https://youtu.be/1JKsW2WDMzg
Minor correction:
I forgot to distribute in the minus sign to the denominator in the end so the formula looks a little different from the thumbnail.
Trig cheat sheet:
https://owlsmath.neocities.org/Trig%20Identities%20and%20Formulas/trig%20identities
Check out my other channel:
https://www.youtube.com/@owl3math
Check out my other channel OWLS SCHOOL OF MATH!
https://www.youtube.com/channel/UCAJaLg-yEcvhC_ggEr0Hl6g
Website:
https://owlsmath.neocities.org
