A function f is said to have a removable discontinuity at x = c if limf (x) exists but f is not continuous at x = c, either because f is not defined at c or because the definition for f(c) differs from the value of the limit Find the values of x (if any) at which f is not continuous, and determine whether each such value is a removabl discontinuity. Iff is continuous for all values of x, enter NA. (a) f(x) = = X x = This discontinuity is (b) f (x) = x+5 x = This discontinuity is (c) f(x) = x-3 |x| 31 Enter your answers in increasing order. x =