A-Level Edexcel C3 January 2007 Q3(c) : ExamSolutions

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@hanros98 I only have a limited amount of time and Edexcel is the most popular board.

ExamSolutions_Maths
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@ExamSolutions cool i didn't know edexcel is the most popular, however i'm guessing edexcel and ocr question are kind of similar.

hanros
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Sir, would you please do 2005 and 2006 for all C1 - C4, M1 & S1?

NomanJohan
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Hi, i was just wondering, I did this question and got part b right but then when i did c i found the gradient of dx/dy at point P which is root 2 then found the normal gradient of that etc... I know this is wrong but why?? I see you have used dy/dx ie the answer for b to find the normal gradient but since the curve equation is with x as the subject, why can you use dy/dx and dx/dy?? I have my exam in just over a week so i would be really grateful if you could answer :)

cath
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why do you only do edexcel and not ocr

hanros
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i hope edexcel end their horrible math gce, atleast in the near future

slipperyjack