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It is easy you just take out the gradient by quoitent rule and the reverse it for the gradient of normal and then put the point(x,y) u wuill get itCan someone please tell me how to do May/June 2010 P31 Q9?
QP: http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s10_qp_31.pdf
MS: http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s10_ms_31.pdf