- #1
Grothard
- 29
- 0
Homework Statement
[itex]\lim_{z \to 0} (\frac{sinz}{z})^{1/z^2}[/itex]
where z is complex
Homework Equations
The standard definition of a limit
L'hopital's rule?
The Attempt at a Solution
I'm quite stumped by this one. There doesn't seem to be a way to break it down into different limits or even to manipulate it much algebraically. Wolfram says the answer is [itex]e^{-1/6}[/itex] but I'm not sure how to arrive at it. I tried starting by proving that that is the limit if z is real and then extending it to the complex plane, but I can't even solve it for that case. I feel like there's an obvious theorem or something along those lines that I am forgetting. Any hints?