A2 June 2021 Paper 1 Q3

3 The curve \(C\) has polar equation

\[r^2 \sin 2\theta = 4\]

Find a Cartesian equation for \(C\).

Circle your answer. [1 mark]

• \(y = 2x\)
• \(y = \dfrac{x}{2}\)
• \(y = \dfrac{2}{x}\)
• \(y = 4x\)