In Exercises, for all values of x = a where the function is discontinuous, determine if the discontinuity is removable or nonremovable.

Exercise 10

In Exercises, find all values x = a where the function is discontinuous. For each point of discontinuity, give (a) f (a) if it exists, 

which conditions for continuity are not met. Be sure to note when the limit doesn’t exist.

(b) lim f(x), (c) lim f(x), (d) lim f(x), and (e) identify xa xa+ xa