Category Math Notebook

A structured record of my self-study in mathematics and economics, including study logs, problem walkthroughs, deeper explorations and reflections, and preparation for advanced coursework.

Truant Trig Sub

I should have posted weeks ago. My host blocked my IP address, as apparently I’ve been located in a region flagged for fraudulent activity. Consequently, anyone using Telkomsel as an internet provider (Indonesia’s largest) in the Yogyakarta region (4.5 million…