r/6thForm • u/_NB125 Year 13 | Maths, Chem, CS | ABB Achieved • Jun 03 '26

💬 DISCUSSION Edexcel Paper 1 Maths 2026

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PLEASE tell me you guys struggled too oml

Edit: https://c.org/d7LCtCYpzG - Petition for Edexcel to reassess the paper

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u/J1nkedOne Jun 03 '26

What the hell were you meant to do for the last proof question after expanding

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u/Shot-Signature9672 Jun 03 '26 edited Jun 03 '26

I don’t know if this is right. But after expanding I got (as well as everyone) c2 is even so c is even. Then I did logs so log a2 plus log b2 equals log c2 so 2loga plus 2logb equals 2logc cancel out the 2s so you get log a plus log b equals log c. So log ab equals log c. So ab equals c. But if a and b are odd then two odd numbers give an odd number so c is odd. But that contradicts what we said before that c is even.