| Exam Board | OCR |
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| Module | C4 (Core Mathematics 4) |
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| Topic | Implicit equations and differentiation |
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2. A curve has the equation
$$x ^ { 2 } + 2 x y ^ { 2 } + y = 4$$
Find an expression for \(\frac { \mathrm { d } y } { \mathrm {~d} x }\) in terms of \(x\) and \(y\).