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STEP III 2007 question 4 solutionTSR Wiki > Study Help > Subjects and Revision > Mathematics > STEP > STEP III 2007 question 4 solution As required. Tangent to curve at P is y = 0 As required. Next part. Right so As required. Normal to P You really need to look at a diagram here. If CQ is parallel to y axis the equation Now We are told that the distance between P and C is rho = a cot t So if the coordinates of C are The distance between P and C is rho. Which we are told it is in the question. This means that the coordinates of C are Solution by insparato. |