Hi, I have a maths question from my university’s past paper that is supposed to

Hi,
I have a maths question from my university’s past paper that is supposed to take less than 1 hour to answer. The model solution to this past paper is not given so, I would like to compare my answers to yours.
I want a human written solution (NO AI / GPT ANSWER) to this question so that I can compare it with mine. I can see if an answer is written by a human or AI..
I do not accept .word file for the answer and I want a pdf / photos of your full working solutions. The logic and hand writing should be clear enough for me to read and interpret.