cos(4x)-3cos(2x)-4 for xe [0.2π]
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
Related questions
Topic Video
Question
Please help me solve the given trigonometric equation.
Expert Solution
Step 1
Consider the given equation and replace the term cos(4x) using double angle trigonometric identity. We use, cos(4x) = 2cos2(2 x) – 1. This will help us have the entire equation in the form of cos(2x). We get:
Step 2
We now have a quadratic equation in terms of cos(2x). Hence, we can first solve for cos(2 x), by solving the equation using factoring.
Step 3
Solving further we get:
Trending now
This is a popular solution!
Step by step
Solved in 6 steps with 5 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, trigonometry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Trigonometry (11th Edition)
Trigonometry
ISBN:
9780134217437
Author:
Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:
PEARSON
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
Trigonometry (11th Edition)
Trigonometry
ISBN:
9780134217437
Author:
Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:
PEARSON
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning
Expert Answers to Latest Homework Questions
Q: The following information about the payroll for the week ended December 30 was obtained from the…
Q: None
Q: Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that could be used in…
Q: The budgeted income statement presented below is for Burkett Corporation for the coming
fiscal year.…
Q: which of the following has the highest mass 1 mol sr, 1mol
Ag, 1 mol Zn.or 1 mol Cu?
Q: Prepaid rent
Unexpired insurance
Ferry
Accumulated depreciation: ferry
Unearned passenger revenue…
Q: Don't use chatgpt it chat gpt means downvote
Q: Pharoah Stores is a new company that started operations on March 1, 2024. The company has decided to…
Q: I need help to Produce a BSA standard curve. Use Excel to draw a scatter plot (data points are not…
Q: Please hepl this chemistry question
Q: What is the product of the sequence shown?
Br
Br
excess
Mg
D₂O
Et₂O
D
D
H
H H3CO
OCH3
|||
Mg
Mg
HO…
Q: Draw the product of this reaction. Ignore inorganic byproducts.
H2/Lindlar's catalyst
Drawing
Q: Maria is the sheriff of Narez, Texas. Oscar robs a Narez gas station and a $
500 reward is offered…
Q: Vertical Analysis of Balance Sheet
Balance sheet data for Kwan Company on December 31, the end of…
Q: None
Q: Which of the following statements
about carboxylic acids is true?
Will react with strong bases.…
Q: Question 1, Part 6: Three capacitors are connected to a 12.0V battery as shown in the figure
below.…
Q: help please answer in text form with proper workings and explanation for each and every part and…
Q: None
Q: 2:56 PM Sun Jul 28
100%
learn.zybooks.com
=zyBooks
My library > CSCE 1336/CSCE 1336: Fundamentals of…
Q: Managers are evaluating two independent
projects. Project X has a NPV of $282,500 and a…