Question

http://i.imgur.com/GXViS.png

Answer 1

@Hero help on this?

Answer 2

It is 2 A.M, and I need to finish this class by tonight.

Answer 3

As in 12:00 A.M today.

Answer 4

2 doesnt exist
or the derivative doesnt exist
im not sure about the limit
it might not exist or it could approach 2 from both sides

Answer 5

Hints:

1. Can we find the limit of a sharp corner?
2. We should only pay attention only to what the graph is approaching not the dot above it, right?
3. Can we evaluate the limit if two graphs are approaching the same point from two different directions?