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Parametric Equations

Parametric Equations

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Question 16

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 < t < \pi x=sin2t,y=sin2t,0<t<π
a.

Find expressions for dxdt\displaystyle \frac{dx}{dt}dtdx​ and dydt\displaystyle \frac{dy}{dt}dtdy​.

[2]
b.

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

[2]
c.

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

[5]
d.

Find 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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