Sine, Sign, Cyan, Sighin'
Sine/cosine riffed into sign/cosign, cyan/co-cyan (its complementary color, orange) and sighin'/co-sighin'.
Use this cartoon
Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2023-01-01-sine-sign-cyan-sighin/ (CC BY-NC 4.0)Transcript
Sine [graph] · Cosine [graph shifted] · Sign [a signature "Name"] · Cosign [two signatures "Name" / "Other Name"] · Cyan [a cyan swatch] · Co-Cyan [an orange swatch] · Sighin' ["sigh…"] · Co-Sighin' [two people: "sigh…" "sigh…"]