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Find the intervals on which f is increasing and the intervals on which it is decreasing. f(x)=-2 cos(x)-x on [0,л] Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. OA. The function is increasing on the open interval(s) The function is never decreasing. (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) B. The function is increasing on the open interval(s) ☐ and decreasing on the open interval(s) ☐ . (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using tas needed. Use integers or fractions for any numbers in the expression.) C. The function is decreasing on the open interval(s) ☐ . The function is never increasing. (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) ○ D. The function is never increasing or decreasing.

Find the intervals on which f is increasing and the intervals on which it is decreasing. f(x)=-2 cos(x)-x on [0,л] Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. OA. The function is increasing on the open interval(s) The function is never decreasing. (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) B. The function is increasing on the open interval(s) ☐ and decreasing on the open interval(s) ☐ . (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using tas needed. Use integers or fractions for any numbers in the expression.) C. The function is decreasing on the open interval(s) ☐ . The function is never increasing. (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) ○ D. The function is never increasing or decreasing.

Algebra & Trigonometry with Analytic Geometry
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 67E
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Find the intervals on which f is increasing and the intervals on which it is decreasing. f(x)=-2 cos(x)-x on [0,л] Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. OA. The function is increasing on the open interval(s) The function is never decreasing. (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) B. The function is increasing on the open interval(s) ☐ and decreasing on the open interval(s) ☐ . (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using tas needed. Use integers or fractions for any numbers in the expression.) C. The function is decreasing on the open interval(s) ☐ . The function is never increasing. (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) ○ D. The function is never increasing or decreasing.
Transcribed Image Text:Find the intervals on which f is increasing and the intervals on which it is decreasing. f(x)=-2 cos(x)-x on [0,л] Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. OA. The function is increasing on the open interval(s) The function is never decreasing. (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) B. The function is increasing on the open interval(s) ☐ and decreasing on the open interval(s) ☐ . (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using tas needed. Use integers or fractions for any numbers in the expression.) C. The function is decreasing on the open interval(s) ☐ . The function is never increasing. (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) ○ D. The function is never increasing or decreasing.
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