Parametric equations

This video covers parametric equations - what they are and how we can use them. It's quite lengthy, so feel free to jump to the parts that you need...
Question 1 - 2:45 - Find where a curve crosses an axis and a straight line
Question 2 - 6:42 - Find the equation of a normal to the curve
Question 3 - 12:35 - Trigonometric equations, find where the gradient has a particular value and find the Cartesian equation
Question 4 - 18:05 - More trigonometric equations, find the Cartesian equation and its domain
Enjoy!
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[@michaelorina525]

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[@StarfishMaths]

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[@HahaTooEasy]

Haha you read my mind l'm doing parametric equations today.. Thanks 🙃

[@StarfishMaths]

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[@ivana.j.garcia1462]

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[@blu4348]

At 9:55 why did you turn the -½ into (-2) ? Doesn't that make the whole equation wrong ?

[@rajant318]

X = cos theta

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