| Exam Board | Edexcel |
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| Module | C3 (Core Mathematics 3) |
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| Topic | Chain Rule |
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- A curve has the equation \(y = ( 3 x - 5 ) ^ { 3 }\).
- Find an equation for the tangent to the curve at the point \(P ( 2,1 )\).
The tangent to the curve at the point \(Q\) is parallel to the tangent at \(P\). - Find the coordinates of \(Q\).