| Clue | Source | Date |
|---|---|---|
| Reciprocal of a sine | ||
| Trig function: Abbr | The Washington Post | 21 Nov 2019 |
| Trig function: Abbr | LA Times Daily | 21 Nov 2019 |
| Sin reciprocal, in trig | Wall Street Journal | 28 Sep 2019 |
| Sine reciprocal, abbr | Canadiana | 23 Sep 2019 |
| Sin reciprocal, in trig | ||
| Sine's reciprocal, in trig (abbr.) | Jonesin | 10 Jul 2018 |
| Trig. function | ||
| Math ratio: Abbr. | ||
| Civil service group. | ||
| Cosecant: Abbr. |