[math]-101234
[math]DNE10302
[math]01330DNE
[math]012302
[math]DNE32310
[math]30231DNE
[math]3-12310

Using the table above calcuate the limits below.
Enter 'DNE' if the limit doesn't exist OR if limit can't be determined from the information given.


1. [math]
2. [math]
3. [math]
4. [math]