Find all the roots of the given function. Use preliminary analysis and graphing to find good initial approximations. f(x) = cos (5x)-4x² + 9x The function has a root when x (Do not round until the final answer. Then round to six decimal places as needed. Use a comma to separate answers as needed.)

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter6: Applications Of The Derivative
Section6.5: Differentials: Linear Approximation
Problem 18E: Use the differential to approximate each quantity. Then use a calculator to approximate the...
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Find all the roots of the given function. Use preliminary analysis and graphing to find good initial approximations.
f(x) = cos (5x) - 4x² + 9x
The function has a root when x
(Do not round until the final answer. Then round to six decimal places as needed. Use a comma to separate answers as needed.)
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) - 4x² + 9x The function has a root when x (Do not round until the final answer. Then round to six decimal places as needed. Use a comma to separate answers as needed.)
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