lean_workbook_plus_53209
OpenShow that .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_53209 : tan (π / 8) = √2 - 1 := by sorry
Source
Show that .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_53209 : tan (π / 8) = √2 - 1 := by sorry