Consider function cosh(x – 1) | f (x) = for x E [1,3]. (a) Prove that f is a unimodal function in its domain. (b) Use the method of false position to locate the minimiser with tolerance e = 0.1. (Accurate to 3 decimal places) (c) To find the minimiser with tolerance e = Golden section search method need? 0.1, at least how many calculations does the

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