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# Solutions for Chapter 2-1: Introduction to Periodic Functions

## Full solutions for Precalculus with Trigonometry: Concepts and Applications | 1st Edition

ISBN: 9781559533911

Solutions for Chapter 2-1: Introduction to Periodic Functions

Solutions for Chapter 2-1
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##### ISBN: 9781559533911

Chapter 2-1: Introduction to Periodic Functions includes 4 full step-by-step solutions. This expansive textbook survival guide covers the following chapters and their solutions. Precalculus with Trigonometry: Concepts and Applications was written by and is associated to the ISBN: 9781559533911. Since 4 problems in chapter 2-1: Introduction to Periodic Functions have been answered, more than 21468 students have viewed full step-by-step solutions from this chapter. This textbook survival guide was created for the textbook: Precalculus with Trigonometry: Concepts and Applications, edition: 1.

Key Calculus Terms and definitions covered in this textbook
• Acute triangle

A triangle in which all angles measure less than 90°

• Algebraic expression

A combination of variables and constants involving addition, subtraction, multiplication, division, powers, and roots

• Arcsecant function

See Inverse secant function.

• Blocking

A feature of some experimental designs that controls for potential differences between subject groups by applying treatments randomly within homogeneous blocks of subjects

• Bounded

A function is bounded if there are numbers b and B such that b ? ƒ(x) ? B for all x in the domain of f.

• Coefficient matrix

A matrix whose elements are the coefficients in a system of linear equations

• Constant of variation

See Power function.

• equation of a hyperbola

(x - h)2 a2 - (y - k)2 b2 = 1 or (y - k)2 a2 - (x - h)2 b2 = 1

• Even function

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

• Inverse cosine function

The function y = cos-1 x

• Lower bound for real zeros

A number c is a lower bound for the set of real zeros of ƒ if ƒ(x) Z 0 whenever x < c

• Median (of a data set)

The middle number (or the mean of the two middle numbers) if the data are listed in order.

• One-to-one function

A function in which each element of the range corresponds to exactly one element in the domain

• Parallel lines

Two lines that are both vertical or have equal slopes.

• Probability simulation

A numerical simulation of a probability experiment in which assigned numbers appear with the same probabilities as the outcomes of the experiment.

The formula x = -b 2b2 - 4ac2a used to solve ax 2 + bx + c = 0.

• Quotient polynomial

See Division algorithm for polynomials.

• Statistic

A number that measures a quantitative variable for a sample from a population.

• Upper bound test for real zeros

A test for finding an upper bound for the real zeros of a polynomial.

• Vertex form for a quadratic function

ƒ(x) = a(x - h)2 + k

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