exact value of sin(10 degrees)

precalculus law of sine, but be careful

exact value of sin(3 degrees)

Extreme Trig Question

combining rational exponents, but using calculus,

Taylor series | Chapter 11, Essence of calculus

an interesting integral

Math for fun, sin(z)=2

經典的sin(10度)

Algebra - How To Solve Equations Quickly!

EXTREME quintic equation! (very tiring)

The Oldest Unsolved Problem in Math

5 Levels Of “No Answer" (when should we use what?)

I found the exact value of sin 1 degree (from sin 3 degrees) | Inspired by @blackpenredpen

How Imaginary Numbers Were Invented

Derivative formulas through geometry | Chapter 3, Essence of calculus

The Trig Hiding Inside the Factorials (And Harmonic Numbers)

easy derivative but it took me 32 minutes

The Easiest Integral on YouTube

How To Speak Fluently In English About Almost Anything

Newton's method (introduction & example)