Let f(x) e~x cosx, for 0 < x < I. a. Approximate /(0.25) using linear interpolation with xo = 0 and x\ = 0.5. b. Approximate /(0.75) using linear interpolation with xq = 0.5 and .*1 = 1. c. Approximate /(0.25) and /(0.75) using the second interpolating polynomial with xq = 0, X\ 0.5, and X2 1 -0. d. Which approximations are better, and why?

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