3) Use Newton's Method to find a solution to the equation sin x = cos x - x correct to 6 decimal places.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question
**Problem 3:**

Use Newton's Method to find a solution to the equation \( \sin x = \cos x - x \) correct to 6 decimal places.

**Explanation:**

Newton's Method is an iterative numerical technique used to find approximate solutions to equations of the form \( f(x) = 0 \). To apply this method, follow these steps:

1. **Define the function** \( f(x) = \sin x - \cos x + x \).
2. **Find the derivative** \( f'(x) = \cos x + \sin x + 1 \).
3. **Choose an initial guess** for the solution, say \( x_0 \).
4. **Iterate using Newton's formula:**

   \[
   x_{n+1} = x_n - \frac{f(x_n)}{f'(x_n)}
   \]

5. **Continue iterating** until the difference between successive approximations is less than the desired tolerance (in this case, \( 10^{-6} \)).

By following these steps, you can approximate the solution to the equation \( \sin x = \cos x - x \) with high precision.
Transcribed Image Text:**Problem 3:** Use Newton's Method to find a solution to the equation \( \sin x = \cos x - x \) correct to 6 decimal places. **Explanation:** Newton's Method is an iterative numerical technique used to find approximate solutions to equations of the form \( f(x) = 0 \). To apply this method, follow these steps: 1. **Define the function** \( f(x) = \sin x - \cos x + x \). 2. **Find the derivative** \( f'(x) = \cos x + \sin x + 1 \). 3. **Choose an initial guess** for the solution, say \( x_0 \). 4. **Iterate using Newton's formula:** \[ x_{n+1} = x_n - \frac{f(x_n)}{f'(x_n)} \] 5. **Continue iterating** until the difference between successive approximations is less than the desired tolerance (in this case, \( 10^{-6} \)). By following these steps, you can approximate the solution to the equation \( \sin x = \cos x - x \) with high precision.
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