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# Solutions for Chapter 1: Fundamentals ## Full solutions for Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign) | 4th Edition

ISBN: 9780534402303 Solutions for Chapter 1: Fundamentals

Solutions for Chapter 1
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##### ISBN: 9780534402303

Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign) was written by and is associated to the ISBN: 9780534402303. Chapter 1: Fundamentals includes 100 full step-by-step solutions. Since 100 problems in chapter 1: Fundamentals have been answered, more than 25523 students have viewed full step-by-step solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign), edition: 4.

Key Calculus Terms and definitions covered in this textbook

P(A or B) = P(A) + P(B) - P(A and B). If A and B are mutually exclusive events, then P(A or B) = P(A) + P(B)

• Augmented matrix

A matrix that represents a system of equations.

• 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.

• Combinatorics

A branch of mathematics related to determining the number of elements of a set or the number of ways objects can be arranged or combined

• Continuous function

A function that is continuous on its entire domain

• Inverse cosine function

The function y = cos-1 x

• Inverse of a matrix

The inverse of a square matrix A, if it exists, is a matrix B, such that AB = BA = I , where I is an identity matrix.

• Linear regression equation

Equation of a linear regression line

• Lower bound of f

Any number b for which b < ƒ(x) for all x in the domain of ƒ

• Opens upward or downward

A parabola y = ax 2 + bx + c opens upward if a > 0 and opens downward if a < 0.

• Position vector of the point (a, b)

The vector <a,b>.

• Product of complex numbers

(a + bi)(c + di) = (ac - bd) + (ad + bc)i

• Proportional

See Power function

• Random behavior

Behavior that is determined only by the laws of probability.

• Spiral of Archimedes

The graph of the polar curve.

• Stretch of factor c

A transformation of a graph obtained by multiplying all the x-coordinates (horizontal stretch) by the constant 1/c, or all of the y-coordinates (vertical stretch) of the points by a constant c, c, > 1.

• Sum of an infinite series

See Convergence of a series

• Symmetric difference quotient of ƒ at a

ƒ(x + h) - ƒ(x - h) 2h

• Third quartile

See Quartile.

• Tree diagram

A visualization of the Multiplication Principle of Probability.

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