Answer Happy

i) Find the error in percentage. ii) Recommend two (2) ways to get more accurate answer.
Chapter 4: (Numerical Differentiation and Integration) 1) Find numerical answer of function below, by using centered finite difference formula and Richardson's extrapolation with h = 0.1 and h = 0.05. (Choose one) = e(sin[ln(2x)])² — tan(x); find f" (0.5); a) f(x) Actual-6.5813109861