Find all solutions to the following equations that fall in the interval [0,27]. 8sin³x + 4sin²x – 6sinx = 3

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
icon
Related questions
icon
Concept explainers
Question

Find all solutions to the following equations that fall in the interval [0,2π].

8sin^3 x+ 4sin^2 x-6sinx=3

**Problem Statement:**

5. Find all solutions to the following equation that fall in the interval \([0, 2\pi]\).

\[8\sin^3x + 4\sin^2x - 6\sin x = 3\]

**Solution Explanation:**

To solve this equation, start by rearranging and simplifying it. Set \(y = \sin x\) to simplify the expression to a cubic equation in \(y\):

\[8y^3 + 4y^2 - 6y - 3 = 0\]

Next, solve the cubic equation for \(y\) to find possible values that satisfy \(0 \leq x \leq 2\pi\). 

Once the possible values for \(y\) are determined, use the inverse sine function to find \(x\) in the given interval. Check each solution to ensure it falls within \([0, 2\pi]\). 

Remember, additional solutions may exist based on the periodic nature of the sine function, so consider all potential angles for solutions within the specified interval.
Transcribed Image Text:**Problem Statement:** 5. Find all solutions to the following equation that fall in the interval \([0, 2\pi]\). \[8\sin^3x + 4\sin^2x - 6\sin x = 3\] **Solution Explanation:** To solve this equation, start by rearranging and simplifying it. Set \(y = \sin x\) to simplify the expression to a cubic equation in \(y\): \[8y^3 + 4y^2 - 6y - 3 = 0\] Next, solve the cubic equation for \(y\) to find possible values that satisfy \(0 \leq x \leq 2\pi\). Once the possible values for \(y\) are determined, use the inverse sine function to find \(x\) in the given interval. Check each solution to ensure it falls within \([0, 2\pi]\). Remember, additional solutions may exist based on the periodic nature of the sine function, so consider all potential angles for solutions within the specified interval.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Application of Integration
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning
Thomas' Calculus (14th Edition)
Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781319050740
Author:
Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:
W. H. Freeman
Precalculus
Precalculus
Calculus
ISBN:
9780135189405
Author:
Michael Sullivan
Publisher:
PEARSON
Calculus: Early Transcendental Functions
Calculus: Early Transcendental Functions
Calculus
ISBN:
9781337552516
Author:
Ron Larson, Bruce H. Edwards
Publisher:
Cengage Learning