| Exam Board | AQA |
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| Module | C4 (Core Mathematics 4) |
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| Year | 2010 |
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| Session | January |
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| Topic | Implicit equations and differentiation |
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5 A curve is defined by the equation
$$x ^ { 2 } + x y = \mathrm { e } ^ { y }$$
Find the gradient at the point \(( - 1,0 )\) on this curve.