Edexcel Mathematics Sample paper · Paper 1 · Question 13 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

Sample paper · Paper 1 · Question 13 · 13 marks

13. The curve C has parametric equations (a) Find an expression for d y in terms of t. x = 2 cos t, y = 3 cos 2 t, 0  t  π d x (2) π The point P lies on C where t = The line l is the normal to C at P. (b) Show that an equation for l is 2x − 2 3y − 1 = 0 (5) The line l intersects the curve C again at the point Q. (c) Find the exact coordinates of Q. You must show clearly how you obtained your answers.

Lesson: Introduction to Differentiation and First Principles (Polynomials)