| Exam Board | CAIE |
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| Module | P2 (Pure Mathematics 2) |
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| Year | 2021 |
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| Session | November |
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| Topic | Implicit equations and differentiation |
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5 A curve has equation \(x ^ { 2 } + 4 x \cos 3 y = 6\).
Find the exact value of the gradient of the normal to the curve at the point \(\left( \sqrt { 2 } , \frac { 1 } { 12 } \pi \right)\).