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Consider the data as in Table 2. Table 2 X 0. 1 0.2 0.3 0.4 0.5 0.6 f( x ) 0.7 1.095 0.8 1.181 1.260 1.332 1.399 1.462 1.524 1.586 a) Approximate the derivative of fat x = 0.8. Then, use the error formula to find the error in the approximation if f" s 0.2255. (5 marks) b) Use Richardson Extrapolation to approximate f'(0.4). Given that f'(x) = ex -2x, determine the relative error of the approximation