a) http://img21.imageshack.us/img21/595/alimit.th.png

b) Explain why the limit as x approaches 3 from the right cannot be determined.

c) What can you conclude about

http://img442.imageshack.us/img442/7...erlimit.th.png

For a I first tried to sub in 3 for x but that gives me the square root of 0 which is 0.. so is this indeterminite form?.. and i did it wrong?