The function f has a root of multiplicity 2 at r if f(r) = f'(r) = 0
Question:
The function f has a root of multiplicity 2 at r if f(r) = f'(r) = 0 and f"(r) ≠ 0. In this case, a slight modification of Newton’s method, known as the modified (or accelerated) Newton’s method, is given by the formula
a. Verify that 0 is a root of multiplicity 2 of the function f(x) = e2 sin x - 2x - 1.
b. Apply Newton’s method and the modified Newton’s method using x0 = 0.1 to find the value of x3 in each case. Compare the accuracy of each value of x3.
c. Consider the function f(x) = 8x2/3x2 + 1 given in Example 4. Use the modified Newton’s method to find the value of x3 using x0 = 0.15. Compare this value to the value of x3 found in Example 4 with x0 = 0.15.
Step by Step Answer:
Calculus Early Transcendentals
ISBN: 978-0321947345
2nd edition
Authors: William L. Briggs, Lyle Cochran, Bernard Gillett