| Exam Board | CAIE |
|---|
| Module | P3 (Pure Mathematics 3) |
|---|
| Year | 2019 |
|---|
| Session | November |
|---|
| Topic | Parametric equations |
|---|
3 The parametric equations of a curve are
$$x = 2 t + \sin 2 t , \quad y = \ln ( 1 - \cos 2 t )$$
Show that \(\frac { \mathrm { d } y } { \mathrm {~d} x } = \operatorname { cosec } 2 t\).