Concept explainers
a
To calculate the zeros of the given polynomial using algebraic method
a
Answer to Problem 30RE
Explanation of Solution
Given Information:
Formula used:
Calculation:
Simplify the given function as follows:
Consider
Now either
If
If
Hence,
Therefore, the zeros of the polynomial are
b
To sketch the graph of the given function
b
Explanation of Solution
Given information:
Graph:
Interpretation:
Using a graphing utility, the graph of the function occurs as above.
c
To approximate the zeros of the given function using graph and comparing with the zeros in subpart (a)
c
Explanation of Solution
Given information:
Concept used:
The zeros of the function are the points in which the curve of the function passes through the
Graph:
Interpretation:
From the above figure,
The curve of the given function passes through three points
Conclusion:
Therefore, the zeros found algebraically in subpart (a) is of both real and imaginary roots while only the real roots are seen graphically.
Chapter 2 Solutions
Precalculus with Limits: A Graphing Approach
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning