If `f(x)=1/2 x-1` then on the interval `[0,pi]`(a) tanl f(x)] and 1/f (x) are both continuousし1 (b)tan(f(x)] and 1//(x) are both discontinuousf(tanl/(x)] and f (a) are both continuoustan[ f(x)] is continuous but 1/f(x) is not(1989 2 Marks)