Find all the roots of the given function. Use preliminary analysis and graphing to find good initial approximations. f(x) = cos (5x) - 2x² + 7x The function has a root when x 0.12814,2.922041 Do not round until the final answer. Then round to six decimal places as needed. Use a comma to separate answers as needed.)
Find all the roots of the given function. Use preliminary analysis and graphing to find good initial approximations. f(x) = cos (5x) - 2x² + 7x The function has a root when x 0.12814,2.922041 Do not round until the final answer. Then round to six decimal places as needed. Use a comma to separate answers as needed.)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 43E
Related questions
Question
***The answer that is in there right now is incorrect.***
Transcribed Image Text:Find all the roots of the given function. Use preliminary analysis and graphing to find good initial approximations.
f(x) = cos (5x) - 2x² +7x
The function has a root when x -0.12814,2.922041
(Do not round until the final answer. Then round to six decimal places as needed. Use a comma to separate answers as needed.)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 3 images
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage