lean_workbook_plus_16703
Open(By Cauchy-Schwarz)
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_16703 {a b c : ℝ} {y z : ℝ} : (a * sin y + b * cos z + c) ^ 2 ≤ (a ^ 2 + b ^ 2 + c ^ 2) * (sin y ^ 2 + cos z ^ 2 + 1 ^ 2) := by sorrySource