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# Solutions for Chapter 3: Precalculus 9th Edition ## Full solutions for Precalculus | 9th Edition

ISBN: 9780321716835 Solutions for Chapter 3

Solutions for Chapter 3
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##### ISBN: 9780321716835

Chapter 3 includes 47 full step-by-step solutions. Precalculus was written by and is associated to the ISBN: 9780321716835. Since 47 problems in chapter 3 have been answered, more than 11669 students have viewed full step-by-step solutions from this chapter. This textbook survival guide was created for the textbook: Precalculus, edition: 9. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Absolute minimum

A value ƒ(c) is an absolute minimum value of ƒ if ƒ(c) ? ƒ(x)for all x in the domain of ƒ.

• Annuity

A sequence of equal periodic payments.

• Characteristic polynomial of a square matrix A

det(xIn - A), where A is an n x n matrix

• Convenience sample

A sample that sacrifices randomness for convenience

• Cube root

nth root, where n = 3 (see Principal nth root),

• Frequency (in statistics)

The number of individuals or observations with a certain characteristic.

• Histogram

A graph that visually represents the information in a frequency table using rectangular areas proportional to the frequencies.

• Modified boxplot

A boxplot with the outliers removed.

• nth root of a complex number z

A complex number v such that vn = z

• Periodic function

A function ƒ for which there is a positive number c such that for every value t in the domain of ƒ. The smallest such number c is the period of the function.

• Perpendicular lines

Two lines that are at right angles to each other

The distance from a point on a circle (or a sphere) to the center of the circle (or the sphere).

• Random behavior

Behavior that is determined only by the laws of probability.

• Sample space

Set of all possible outcomes of an experiment.

• Semiperimeter of a triangle

One-half of the sum of the lengths of the sides of a triangle.

• Slope-intercept form (of a line)

y = mx + b

• Solution set of an inequality

The set of all solutions of an inequality

A graph in which (x, -y) is on the graph whenever (x, y) is; or a graph in which (r, -?) or (-r, ?, -?) is on the graph whenever (r, ?) is

• Union of two sets A and B

The set of all elements that belong to A or B or both.

• Vertices of a hyperbola

The points where a hyperbola intersects the line containing its foci.

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