Can someone help me with evaluating limits? The first one is : lim x--0 (1+e^x)/(1-e^x)??

Question

Can someone help me with evaluating limits? The first one is : lim x-->0 (1+e^x)/(1-e^x)??

anonymous · Answer

The limit does not exist because as it approaches 0 from the right it gets closer to           - infinity and as it approaches 0 from the left it gets closer to  +infinity

anonymous · Answer

could you help me with more?

anonymous · Answer

I will try. :)

anonymous · Answer

lim-->0 (1+e^x)/(1-e^(x^2))?

anonymous · Answer

and is there a way to work out the first one?

anonymous · Answer

there is but it is really long, so ummm here is a link that has it. http://www.wolframalpha.com/input/?i=lim+as+x+approaches+0+of+%281%2Be^x%29%2F%281-e^x%29

anonymous · Answer

you could also plug this one into it as well to see the work.

anonymous · Answer

Hmmm I am sorry but I cannot think of how to explain this but the limit is -infinity and the work from that website makes it look really confusing. But here it is http://www.wolframalpha.com/input/?i=lim+as+x+approaches+0+of+%281%2Be^x%29%2F%281-e^x^2%29

anonymous · Answer

thanks though!

anonymous · Answer

You are welcome