simp
𝕜 : Type u_1
E : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedAlgebra 𝕜 ℝ
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
x dx : ℝ
⊢ cexp (2 * ↑π * ↑x * I) • (fderiv ℝ (fun x => 2 * ↑π * ↑x * I) x) dx = 2 * ↑π * ↑dx * (I * cexp (2 * ↑π * ↑x * I))
𝕜 : Type u_1
E : Type u_2
inst✝³ : NontriviallyNormedField 𝕜
inst✝² : NormedAlgebra 𝕜 ℝ
inst✝¹ : NormedAddCommGroup E
inst✝ : NormedSpace ℝ E
x dx : ℝ
⊢ cexp (2 * ↑π * ↑x * I) * (fderiv ℝ (fun x => 2 * ↑π * ↑x * I) x) dx = 2 * ↑π * ↑dx * (I * cexp (2 * ↑π * ↑x * I))