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Parametric Equations

Parametric Equations

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Question 158

A curve has the parametric equations

x=sin⁡2t,y=sin⁡2t,0≤t≤π x = \sin^2 t, \quad y = \sin 2t, \quad 0 \leq t \leq \pi x=sin2t,y=sin2t,0≤t≤π
a.

Find an expression for dydx\displaystyle \frac{dy}{dx}dxdy​ in terms of ttt.

[3]
b.

Find an equation of the normal to the curve when t=π6\displaystyle t = \frac{\pi}{6}t=6π​

[5]
c.

Verify that 4x2+y2=4x4x^2 + y^2 = 4x4x2+y2=4x is a cartesian equation for the curve.

[4]
Markscheme

Parametric Equations Questions

  1. A Level
  2. /Maths
  3. /Parametric Equations

215 exam-style questions on Edexcel A Level Maths Parametric Equations, covering 8.1 Parametric Equations, 8.2 Using Trigonometric Identities, 8.3 Curve Sketching, 8.4 Points of Intersection, and 8.5 Modelling with Parametric Equations. Each one has a worked solution and a mark scheme showing where the marks go.

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