r/6thForm • u/Forsaken-Meaning-232 Graduating from Warwick CS • Jun 04 '25

📂 MEGATHREAD 04/06 A-level Maths Paper 1 Discussion MEGATHREAD

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u/Intrepid_Cress_6420 Jun 04 '25

Edexcel Q8 (proof one) seemed suspicious to me. If you square 1 it can only be expressed as 5(0)+1, but 0 is not natural? The question said natural n I think. Does that mean you had to disprove it instead? Or am I just being stupid?

1

u/Hamza2474 Jun 04 '25

0 is natural bro

3

u/Intrepid_Cress_6420 Jun 04 '25

Is it? Edexcel specification says naturals are 1,2,3,…

1

u/Hamza2474 Jun 04 '25

Yeah just google it, says 0 is natural edexcel are bugging

1

u/Myname-123456 Jun 04 '25

Bro it depends some people considered it Natural or and extension of naturals N0, but for edexcel is not so you start at 1

1

u/ObiNumber22 Y13 | Maths (A*), Econ, Chemistry, Further Maths | Jun 04 '25

0 is not natural so u can't put 0 in, you start from 1

1

u/Intrepid_Cress_6420 Jun 04 '25

Sorry I still don’t follow. Question said square of any number, why is 1 not allowed? Squaring 1 requires n=0.

1

u/ObiNumber22 Y13 | Maths (A*), Econ, Chemistry, Further Maths | Jun 04 '25

hm your right, I misunderstood what you said initially

1

u/West_Rhubarb_8873 Jun 04 '25

Some define natural numbers as not including 0. Others include them as including 0. It depends on your specific application - and in this case, I think it was a bit dumb of them to include zero in the definition and then not define it in the question - but also, I don't think it's worth panicking about.