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# Solutions for Chapter 3: Exponential and Logarithmic Functions

## Full solutions for Precalculus | 7th Edition

ISBN: 9780618643448

Solutions for Chapter 3: Exponential and Logarithmic Functions

Solutions for Chapter 3
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##### ISBN: 9780618643448

This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Precalculus, edition: 7. Chapter 3: Exponential and Logarithmic Functions includes 155 full step-by-step solutions. Precalculus was written by and is associated to the ISBN: 9780618643448. Since 155 problems in chapter 3: Exponential and Logarithmic Functions have been answered, more than 13875 students have viewed full step-by-step solutions from this chapter.

Key Calculus Terms and definitions covered in this textbook
• Additive inverse of a complex number

The opposite of a + bi, or -a - bi

• Boundary

The set of points on the “edge” of a region

• Common logarithm

A logarithm with base 10.

• Dependent event

An event whose probability depends on another event already occurring

• Factoring (a polynomial)

Writing a polynomial as a product of two or more polynomial factors.

• Fundamental

Theorem of Algebra A polynomial function of degree has n complex zeros (counting multiplicity).

• Infinite limit

A special case of a limit that does not exist.

• Infinite sequence

A function whose domain is the set of all natural numbers.

• Inverse composition rule

The composition of a one-toone function with its inverse results in the identity function.

• Jump discontinuity at x a

limx:a - ƒ1x2 and limx:a + ƒ1x2 exist but are not equal

• Length of a vector

See Magnitude of a vector.

• Lower bound test for real zeros

A test for finding a lower bound for the real zeros of a polynomial

• Natural logarithm

A logarithm with base e.

• Outcomes

The various possible results of an experiment.

• Placebo

In an experimental study, an inactive treatment that is equivalent to the active treatment in every respect except for the factor about which an inference is to be made. Subjects in a blind experiment do not know if they have been given the active treatment or the placebo.

• Quartic regression

A procedure for fitting a quartic function to a set of data.

• Regression model

An equation found by regression and which can be used to predict unknown values.

• Solve by elimination or substitution

Methods for solving systems of linear equations.

• Time plot

A line graph in which time is measured on the horizontal axis.

• Vertices of a hyperbola

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

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