This question is about the function f(8) = (0 – 3) cos(@). (a) Explain why the graph of f lies on or above the 0-axis for all values of 0 in the interval [37/2,5/2]. (b) Write down an expression, involving a definite integral, that gives the area between the graph of f and the 0-axis, from 0 = 37/2 to 0 = 5x/2. (c) Use integration by parts to find the area described in part (b), giving both the exact answer and an approximation to three decimal places.

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 80E
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This question is about the function
f(0) = (0 – 3) cos(@).
(a) Explain why the graph of f lies on or above the 0-axis for all values of 0
in the interval [37/2, 57/2].
(b) Write down an expression, involving a definite integral, that gives the
area between the graph of f and the 6-axis, from 0 = 37/2 to 0 = 57/2.
(c) Use integration by parts to find the area described in part (b), giving
both the exact answer and an approximation to three decimal places.
Transcribed Image Text:This question is about the function f(0) = (0 – 3) cos(@). (a) Explain why the graph of f lies on or above the 0-axis for all values of 0 in the interval [37/2, 57/2]. (b) Write down an expression, involving a definite integral, that gives the area between the graph of f and the 6-axis, from 0 = 37/2 to 0 = 57/2. (c) Use integration by parts to find the area described in part (b), giving both the exact answer and an approximation to three decimal places.
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