October 2021 Paper 3 Q2
2 Solve the equation \(\sin 2x = 0.3\) for \(0^\circ \leqslant x \leqslant 180^\circ\). Give your answer(s) correct to 1 decimal place. [2]
| Scheme | Marks | AO |
|---|---|---|
| \(8.7^\circ\) | B1 | 1.1a |
| \(81.3^\circ\) | B1 | 1.1 |
| [2] |
Notes
If two solution given scoring B0 B0 allow B1 for awrt either answer
If > 2 solutions, award B1B0 or B0B1 or B0B0 to candidate’s benefit