Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**zahlenspieler****Member**- Registered: 2018-04-12
- Posts: 7

Let *r* be a real number; and *J^2=-1*. Then

and

Thus

In my proof I didn't use any extension of the exponential function to complex numbers; but just some (very rough) estimates for

etc.*Last edited by zahlenspieler (2018-10-02 23:29:24)*

Offline

**Mathegocart****Member**- Registered: 2012-04-29
- Posts: 2,008

Could you fix your LaTeX? The first two LaTeX codes were not rendered properly.

The integral of hope is reality.

May bobbym have a wonderful time in the pearly gates of heaven.

He will be sorely missed.

Offline

Hi zahlenspieler,

I have fixed your LaTeX.

**LearnMathsFree: Videos on various topics.New: Integration Problem | Adding FractionsPopular: Continued Fractions | Metric Spaces | Duality**

Offline

Pages: **1**