( I still don't get the right-angled triangle sides' worked solution in the appendix though.
I literally did a physics degree, somehow.
The step up to (x^2 - 1) > 2n or whatever is fine.
Right after that looks like (x^2 + 1) - (x^2 - 1) > 2 from nowhere.
Like wtf?
Did I just have a stroke.
Where the hell did that come from and go, fucker-eyed crow?)

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Teachers! We're running a day of year 12 maths workshops on 25th June on campus in Sheffield city centre. Bring a group? They'll see the university campus and enjoy taking part in maths workshops run by university lecturers.

https://shuoutreach.com/event/exploring-maths-experience-day/

#MathsToday #AlevelMathematics

Exploring Maths Experience Day

Maths has always been a vital tool to understand the world around us, as well as a playful and creative way to engage our curiosity. Come along to our Exploring Maths days to glimpse the world that…

SHUOutreach
I’m helping the teenager with some #ALevelMathematics since I’ve got a degree in it and all. Thirty years later, it’s really quite hard. But I found my own notes. Here’s the advice that 18yo me left for their future self.