| Exam Board | CAIE |
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| Module | P1 (Pure Mathematics 1) |
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| Year | 2014 |
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| Session | June |
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| Topic | Chain Rule |
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4 A curve has equation \(y = \frac { 4 } { ( 3 x + 1 ) ^ { 2 } }\). Find the equation of the tangent to the curve at the point where the line \(x = - 1\) intersects the curve.