Related Clues:
- Sch. subj.
- ''What's your sine?'' subject, informally
- Course with sines and tans
- Precalc course
- 18 Across, for one: Abbr.
- ''Fi'' lead-in
- __-fi (flying-saucer stories)
- ___-fi (literary genre)
- Poli ___ (common major)
- Anat., e.g.
- High school math class
- Course with a lot of angles?
- Acoustics, e.g.: Abbr.
- Fair subject?: abbr.
- Geol. or astron.