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# Solutions for Chapter 6.2: The Law of Cosines ## Full solutions for Precalculus | 4th Edition

ISBN: 9780321559845 Solutions for Chapter 6.2: The Law of Cosines

Solutions for Chapter 6.2
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##### ISBN: 9780321559845

Chapter 6.2: The Law of Cosines includes 70 full step-by-step solutions. Since 70 problems in chapter 6.2: The Law of Cosines have been answered, more than 70829 students have viewed full step-by-step solutions from this chapter. Precalculus was written by and is associated to the ISBN: 9780321559845. This textbook survival guide was created for the textbook: Precalculus, edition: 4. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Arctangent function

See Inverse tangent function.

• Common ratio

See Geometric sequence.

• Cone

See Right circular cone.

• Course

See Bearing.

• Derivative of ƒ at x a

ƒ'(a) = lim x:a ƒ(x) - ƒ(a) x - a provided the limit exists

• Distance (on a number line)

The distance between real numbers a and b, or |a - b|

• DMS measure

The measure of an angle in degrees, minutes, and seconds

• Imaginary axis

See Complex plane.

• Initial value of a function

ƒ 0.

• Intercept

Point where a curve crosses the x-, y-, or z-axis in a graph.

• Linear factorization theorem

A polynomial ƒ(x) of degree n > 0 has the factorization ƒ(x) = a(x1 - z1) 1x - i z 22 Á 1x - z n where the z1 are the zeros of ƒ

• Linear function

A function that can be written in the form ƒ(x) = mx + b, where and b are real numbers

• Multiplicative inverse of a matrix

See Inverse of a matrix

• Odd function

A function whose graph is symmetric about the origin (ƒ(-x) = -ƒ(x) for all x in the domain of f).

• Order of magnitude (of n)

log n.

• Power regression

A procedure for fitting a curve y = a . x b to a set of data.

A procedure for fitting a quadratic function to a set of data.

• Re-expression of data

A transformation of a data set.

• Third quartile

See Quartile.

• Zoom out

A procedure of a graphing utility used to view more of the coordinate plane (used, for example, to find theend behavior of a function).

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