| Exam Board | OCR |
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| Module | Pure 1 (Pure Mathematics 1) |
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| Year | 2018 |
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| Session | March |
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| Topic | Implicit equations and differentiation |
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10 In this question you must show detailed reasoning.
Show that the curve with equation \(x ^ { 2 } - 4 x y + 8 y ^ { 3 } - 4 = 0\) has exactly one stationary point.