(For Questions 6 to 7 )
Consider the nonlinear equation sin x − e
−x = 0, which has a roots in the intervals [0, 1], [3, 4] and
[6, 7].
Question 7
Consider again the nonlinear equation sin x − e
−x = 0. Applying the regula falsi method, with
starting point p0 = 3 and p1 = 4 and a tolerance of 10−5 yields the following result :
(1) 0.589117 after at least three iterations
(2) 0.588641 after at most three iteration
(3) The method does not converge to a solution.
(4) 3.096308 after exactly three iterations
(5) None of the above is true.
Consider now the function f(x) = x
4 − 2x
3 − 12x
2 + 16x − 4 which has four distinct roots.
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