(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 6
Which of the following is FALSE.
(1) The fixed-point formula g(x) = x + sin x − e
−x converges to the approximate solution p =
3.09636393 if the initial approximation is p0 = 1.
(2) Newton’s method with p0 = 0.5 will converge to the approximate solution p = 0.588532744
after at most three iterations.
(3) The regula falsi method converges to p = 0.5885328664 if p0 = 0, p1 = 1 after ten iterations.
(4) Newton’s method with p0 = 1 will converge to the approximate solution p = 0.588532743982
after exactly 4 iterations
(5) The fixed-point method does not converge if p0 = 0.5.
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