You don't seem very confident in your answer!
I think nancy just saw the image as was confused
The sky is the limit!
Thank you, Wolfram Alpha: http://www.wolframalpha.com/input/?i=lim%28x-%3Ek%29%28%28s*x%5E2*y*sin%28k-x%29%29%2F%28k%5E2-kx%29%29
It seems that WolframAlpha needs a few explicit parentheses to make it work. http://www.wolframalpha.com/input/?i=lim+x-%3Ek+s*x^2*y*sin%28k-x%29%2F%28k^2-kx%29
Epsilon seems to be especially large this month. This ist wunderbar.
This one was over my head!
Hint: Use the small-angle approximation for the sine function.
L'Hop is always handy. A year after taking calc, this was a warm brush up on those skills. :P
The limit is the kys