| Exam Board | CAIE |
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| Module | P2 (Pure Mathematics 2) |
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| Year | 2020 |
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| Session | June |
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| Topic | Implicit equations and differentiation |
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3 The equation of a curve is \(\cos 3 x + 5 \sin y = 3\).
Find the gradient of the curve at the point \(\left( \frac { 1 } { 9 } \pi , \frac { 1 } { 6 } \pi \right)\).