Math Problem Statement

Use the iteration formula x_(n+1) = ∛(10 - 2x_n) to find the values of x_1, x_2, and x_3. Start with x_0 = 2.

Solution

The problem involves using an iteration formula to calculate values for x1x_1, x2x_2, and x3x_3, starting with x0=2x_0 = 2. The iteration formula is given by:

xn+1=102xn3x_{n+1} = \sqrt[3]{10 - 2x_n}

Let's solve for x1x_1, x2x_2, and x3x_3 step by step.

Step 1: Find x1x_1

Starting with x0=2x_0 = 2: [ x_1 = \sqrt[3]{10 - 2(2)} = \sqrt[3]{10 - 4} = \sqrt[3]{6} \approx 1.817 ]

Step 2: Find x2x_2

Using x11.817x_1 \approx 1.817: [ x_2 = \sqrt[3]{10 - 2(1.817)} = \sqrt[3]{10 - 3.634} = \sqrt[3]{6.366} \approx 1.854 ]

Step 3: Find x3x_3

Using x21.854x_2 \approx 1.854: [ x_3 = \sqrt[3]{10 - 2(1.854)} = \sqrt[3]{10 - 3.708} = \sqrt[3]{6.292} \approx 1.849 ]

Final values:

  • x11.817x_1 \approx 1.817
  • x21.854x_2 \approx 1.854
  • x31.849x_3 \approx 1.849

Would you like more details or explanations on any part of the solution?

Here are some related questions:

  1. What happens if you change the initial value x0x_0?
  2. What are some uses of iterative methods in mathematics?
  3. How can you determine when to stop iterations in this formula?
  4. Can this method find solutions to any type of equation?
  5. What other methods can be used to approximate solutions numerically?

Tip: When using iteration methods, always check if the values are converging towards a single value after several iterations.

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Math Problem Analysis

Mathematical Concepts

Iterative Methods
Algebra
Cube Roots

Formulas

x_(n+1) = ∛(10 - 2x_n)

Theorems

Convergence of iterative sequences

Suitable Grade Level

Grades 10-12