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# Solutions for Chapter 9: Additional Topics In Trigonometry

## 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 9: Additional Topics In Trigonometry

Solutions for Chapter 9
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##### ISBN: 9780534402303

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. 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 9: Additional Topics In Trigonometry includes 98 full step-by-step solutions. Since 98 problems in chapter 9: Additional Topics In Trigonometry have been answered, more than 24948 students have viewed full step-by-step solutions from this chapter.

Key Calculus Terms and definitions covered in this textbook
• Absolute value of a vector

See Magnitude of a vector.

• Binomial theorem

A theorem that gives an expansion formula for (a + b)n

• Constant of variation

See Power function.

• Distance (in Cartesian space)

The distance d(P, Q) between and P(x, y, z) and Q(x, y, z) or d(P, Q) ((x ) - x 2)2 + (y1 - y2)2 + (z 1 - z 2)2

• equation of a quadratic function

ƒ(x) = ax 2 + bx + c(a ? 0)

• Equilibrium price

See Equilibrium point.

• Horizontal line

y = b.

• Implied domain

The domain of a function’s algebraic expression.

• Irrational zeros

Zeros of a function that are irrational numbers.

• Lemniscate

A graph of a polar equation of the form r2 = a2 sin 2u or r 2 = a2 cos 2u.

• Minor axis

The perpendicular bisector of the major axis of an ellipse with endpoints on the ellipse.

• Ordered set

A set is ordered if it is possible to compare any two elements and say that one element is “less than” or “greater than” the other.

• Riemann sum

A sum where the interval is divided into n subintervals of equal length and is in the ith subinterval.

• Sample space

Set of all possible outcomes of an experiment.

• Slope

Ratio change in y/change in x

• Standard deviation

A measure of how a data set is spread

• Standard unit vectors

In the plane i = <1, 0> and j = <0,1>; in space i = <1,0,0>, j = <0,1,0> k = <0,0,1>

• Tangent

The function y = tan x

• xz-plane

The points x, 0, z in Cartesian space.

• Zero vector

The vector <0,0> or <0,0,0>.

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