A-Level Edexcel Core Maths C3 January 2011 Q7b : ExamSolutions

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Maths wouldn't be the same without you, I got 94/100 in C2 last year because of you!

suprateekat
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I think you are confused. That is the gradient of the normal.

ExamSolutions_Maths
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@urmum212 He is substituting x in, there is no mistake

nathantierney
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Why wasn't the gradient 1/2 if it was the gradient of the tangent? Thanks

MissAkuaxx