Limit of Function: No Limit Found

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could anyone tell me if this have a limit:
lim ((exp(x)-1-x)^2)/(x^2 - ln(x^2+1)))
x->0

My conclusion is that this doesn't have a limit. Tried everything, this is an problem that i run into.
 
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Have you tried applying L'Hospital's?
 
Unskilled said:
could anyone tell me if this have a limit:
lim ((exp(x)-1-x)^2)/(x^2 - ln(x^2+1)))
x->0

My conclusion is that this doesn't have a limit. Tried everything, this is an problem that i run into.
Have you tried using Maclaurin Series to solve this problem? :)
Hint:
The expansion of exp(x) arround x = 0 is:
e ^ x = 1 + x + \frac{x ^ 2}{2} + ...
The expansion of ln(x + 1) arround x = 0 is:
\ln (x + 1) = x - \frac{x ^ 2}{2} + ...
So what's the expansion of ln(x2 + 1) arround x = 0?
Can you go from here? :)
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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