(2010] 18. let |x]denote the largest integer less than, or equal 1al to, xer. find the poi points of discontinuity (it any) of the followin functions: ing (a) f

(2010] 18. Let |x]denote the largest integer less than, or equal 1al to, xeR. Find the poi points of discontinuity (it any) of the followin functions: ing (a) f(x)-l*|sin Tx, x>0; (b) s(x)= [*]+(x-[E)),x21/2