Let the function f(x)=12(x+2-2). (Note: Show steps of your solution) (a) Calculate the value off (0.21) using four-digit rounding arithmetic. [2 marks] (b) Convert the function into a form that avoids the loss of significance and denotes it as function g(x). [2 marks] (c) Use your answer in (b) to calculate the value of g (0.21) using four-digit rounding arithmetic. [2 marks]