Arc Functions (Inverse Trig) — Calculator style
arcsin, arccos, arctan, arccosec, arcsec, arccot — hybrid output: steps + summary table
arccosec(x) = arcsin(1/x) — domain: x ∉ (-1,1)
arcsec(x) = arccos(1/x) — domain: x ∉ (-1,1)
arccot(x) = π/2 − arctan(x) (or 90° − arctan(x))
arcsin/arccos: domain |x| ≤ 1; arctan: all real.
arcsec(x) = arccos(1/x) — domain: x ∉ (-1,1)
arccot(x) = π/2 − arctan(x) (or 90° − arctan(x))
arcsin/arccos: domain |x| ≤ 1; arctan: all real.