(1) Compute limx-4- f' and lim, 4+ f' where if x

(1) Compute limc_+4- f' and limc_+4+ f' 1 (a) Sketch the graph of f; (b) Where is f continuous? (c) Where is f differentiable? [5 marks] where if .T < O; if O < x < 4; if .T > 4. (2) Compute the derivatives of the following functions: f@) sin .T COS .T = sin(sin(sin x)); = x sin();