| Exam Board | OCR MEI |
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| Module | C3 (Core Mathematics 3) |
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| Year | 2008 |
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| Session | June |
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| Topic | Implicit equations and differentiation |
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7 Given that \(x ^ { 2 } + x y + y ^ { 2 } = 12\), find \(\frac { \mathrm { d } y } { \mathrm {~d} x }\) in terms of \(x\) and \(y\).