lean_workbook_plus_20175
OpenProve that for .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_20175 (x y : ℝ) (h₁ : 0 ≤ x ∧ x ≤ 1) (h₂ : y = arcsin x) : cos y = Real.sqrt (1 - x^2) := by sorry
Source
Prove that for .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_20175 (x y : ℝ) (h₁ : 0 ≤ x ∧ x ≤ 1) (h₂ : y = arcsin x) : cos y = Real.sqrt (1 - x^2) := by sorry