| Exam Board | AQA |
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| Module | Further Paper 1 (Further Paper 1) |
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| Year | 2021 |
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| Session | June |
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| Topic | Polar coordinates |
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3 The curve \(C\) has polar equation
$$r ^ { 2 } \sin 2 \theta = 4$$
Find a Cartesian equation for \(C\).
Circle your answer.
\(y = 2 x\)
\(y = \frac { x } { 2 }\)
\(y = \frac { 2 } { x }\)
\(y = 4 x\)