Related Clues:

• Calc prerequisite whose basic ratios are indicated by the sets of circled squares
• Class where you'd use the SOHCAHTOA mnemonic
• Class with the old joke, "What's your sine?"
• Subject for those who know all the angles
• Pre-calc math course
• Math with x's
• Subject's Gable posed by artist
• Study of sines etc (abbr)
• Course with relevant tangents
• Branch of mathematics using letters and symbols
• Sin subject?
• Math with tangents
• Math with variables
• Tough math course
• "x + y = z" math type