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# Solutions for Chapter 4: Exponential and Logarithmic Functions ## Full solutions for Precalculus: Mathematics for Calculus (Standalone Book) | 7th Edition

ISBN: 9781305071759 Solutions for Chapter 4: Exponential and Logarithmic Functions

Solutions for Chapter 4
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##### ISBN: 9781305071759

This textbook survival guide was created for the textbook: Precalculus: Mathematics for Calculus (Standalone Book), edition: 7. Chapter 4: Exponential and Logarithmic Functions includes 108 full step-by-step solutions. Precalculus: Mathematics for Calculus (Standalone Book) was written by and is associated to the ISBN: 9781305071759. This expansive textbook survival guide covers the following chapters and their solutions. Since 108 problems in chapter 4: Exponential and Logarithmic Functions have been answered, more than 7650 students have viewed full step-by-step solutions from this chapter.

Key Calculus Terms and definitions covered in this textbook
• Angle of elevation

The acute angle formed by the line of sight (upward) and the horizontal

• Common ratio

See Geometric sequence.

• Constant of variation

See Power function.

• Continuous function

A function that is continuous on its entire domain

• De Moivre’s theorem

(r(cos ? + i sin ?))n = r n (cos n? + i sin n?)

• Empty set

A set with no elements

• Even function

A function whose graph is symmetric about the y-axis for all x in the domain of ƒ.

• Frequency (in statistics)

The number of individuals or observations with a certain characteristic.

• Inductive step

See Mathematical induction.

• Infinite discontinuity at x = a

limx:a + x a ƒ(x) = q6 or limx:a - ƒ(x) = q.

• Local maximum

A value ƒ(c) is a local maximum of ƒ if there is an open interval I containing c such that ƒ(x) < ƒ(c) for all values of x in I

• Logistic regression

A procedure for fitting a logistic curve to a set of data

• Matrix, m x n

A rectangular array of m rows and n columns of real numbers

• Positive angle

Angle generated by a counterclockwise rotation.

• Probability function

A function P that assigns a real number to each outcome O in a sample space satisfying: 0 … P1O2 … 1, P12 = 0, and the sum of the probabilities of all outcomes is 1.

• Product rule of logarithms

ogb 1RS2 = logb R + logb S, R > 0, S > 0,

• Real number

Any number that can be written as a decimal.

• Real part of a complex number

See Complex number.

• Sample space

Set of all possible outcomes of an experiment.

• Zero of a function

A value in the domain of a function that makes the function value zero.

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