Artisan Trigonometrician is a Moon badge. To earn it, the user had to achieve mastery in several certain exercises:
- Trigonometry 2
- Graphs of sine and cosine
- Inverse trig functions
- Pythagorean identities
- Trig identities
This badge motivated users to become proficient by practicing more exercises, especially Trigonometry ones. This badge can be found here on Khan Academy.