2. Let f(x) = 3 cos 2x + sinx. a) b) Show that f'(x) = -5 sin 2x. π 3π In the interval

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 75E
icon
Related questions
Question
2. Let f(x) = 3 cos 2x + sin²x.
a)
b)
Show that f'(x) = -5 sin 2x.
π
3π
In the interval
<x<
one normal to the graph of ƒ has the equation x=k.
2
4
4
Find the value of k.
Transcribed Image Text:2. Let f(x) = 3 cos 2x + sin²x. a) b) Show that f'(x) = -5 sin 2x. π 3π In the interval <x< one normal to the graph of ƒ has the equation x=k. 2 4 4 Find the value of k.
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,