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# Solutions for Chapter 6.3: Applications of Trigonometry

## Full solutions for Precalculus: Graphical, Numerical, Algebraic | 8th Edition

ISBN: 9780321656933

Solutions for Chapter 6.3: Applications of Trigonometry

Solutions for Chapter 6.3
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##### ISBN: 9780321656933

Since 83 problems in chapter 6.3: Applications of Trigonometry have been answered, more than 45427 students have viewed full step-by-step solutions from this chapter. Precalculus: Graphical, Numerical, Algebraic was written by and is associated to the ISBN: 9780321656933. This textbook survival guide was created for the textbook: Precalculus: Graphical, Numerical, Algebraic, edition: 8th Edition. Chapter 6.3: Applications of Trigonometry includes 83 full step-by-step solutions. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Cardioid

A limaçon whose polar equation is r = a ± a sin ?, or r = a ± a cos ?, where a > 0.

• 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

• Fibonacci numbers

The terms of the Fibonacci sequence.

• Focal width of a parabola

The length of the chord through the focus and perpendicular to the axis.

• Identity function

The function ƒ(x) = x.

• Increasing on an interval

A function ƒ is increasing on an interval I if, for any two points in I, a positive change in x results in a positive change in.

• Inferential statistics

Using the science of statistics to make inferences about the parameters in a population from a sample.

• Infinite discontinuity at x = a

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

• Inverse variation

See Power function.

• Logistic regression

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

• Multiplication property of equality

If u = v and w = z, then uw = vz

• Observational study

A process for gathering data from a subset of a population through current or past observations. This differs from an experiment in that no treatment is imposed.

• Power function

A function of the form ƒ(x) = k . x a, where k and a are nonzero constants. k is the constant of variation and a is the power.

• Power-reducing identity

A trigonometric identity that reduces the power to which the trigonometric functions are raised.

• Quotient polynomial

See Division algorithm for polynomials.

• Radian

The measure of a central angle whose intercepted arc has a length equal to the circle’s radius.

• Rose curve

A graph of a polar equation or r = a cos nu.

• Solution set of an inequality

The set of all solutions of an inequality

• 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>

• Trichotomy property

For real numbers a and b, exactly one of the following is true: a < b, a = b , or a > b.

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