Higher June 2024 Paper 1 Q22
22
(a) Sketch the graph of \(y = \sin x^\circ\) for \(0 \leqslant x \leqslant 360\)
(b) Solve the equation \(2\sin x^\circ = -1\) for \(0 \leqslant x \leqslant 360\) (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| Sketch | M1 | for correct shape for \(0 \le x \le 360\) |
| A1 | for fully correct sketch with labels at 1 and \(-1\) |
| Answer | Mark | Mark scheme |
|---|---|---|
| 210, 330 | M1 | for one correct solution or for \(\sin 30 = \dfrac{1}{2}\) |
| A1 | cao |
Additional guidance
Can be implied by \(x = -30\)