That requires neither engineering-level math nor paper nor patience. All you need is the chain rule and some basic knowledge of sine and cosine:

The derivative of cos is -sin, but because of the 6x you get an extra factor 6. The sine function is periodic on 2pi, so sin(6*2pi + pi/2) = sin(pi/2) = 1. So the result is -36

The last times May 4 was on a Thursday were 2006, 2017 and 2023. The Core 2 wasn’t released until July of 2006 so I’d guess the correct year is 2017, but even then the hardware was already pretty dated. For reference, in 2017 the first generation Ryzen prozessors and Intel Kaby Lake (7th generation Core i) were around.

The alt right/populists turned politics basically into a game of us vs them where you associate with “your” party like you would with a sports team. If you say something against “their” party, they take it personally just like saying something bad about their favourite sports team. If “their” party screws up they are way more lenient, like they would be if their favourite does a foul. They win and lose with “their” party and make their personal success dependent on it. That might not be rational but it’s normal behaviour for human to associate with groups like that. It just shouldn’t happen with politicians and political parties.

To be fair that’s mostly a case of “even a broken clock is right twice a day”. Psychology was still in its infancy back then and they had so few ideas how to actually help people that insulin shock therapy and lobotomy seemed like good ideas. When looking at it with modern knowledge it’s easy to say they already knew when pointing at the bits of decent ideas back then. In reality that’s cherry picking between the heaps of wrong and outright dangerous ideas prevalent at the time.