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Textbooks > Calculus > Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign) 4

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

ISBN: 9780534402303 Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign) | 4th Edition - Solutions by Chapter

Solutions by Chapter
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##### ISBN: 9780534402303

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Key Calculus Terms and definitions covered in this textbook
• Characteristic polynomial of a square matrix A

det(xIn - A), where A is an n x n matrix

• Control

The principle of experimental design that makes it possible to rule out other factors when making inferences about a particular explanatory variable

• Coordinate plane

See Cartesian coordinate system.

• Inverse sine function

The function y = sin-1 x

• Lemniscate

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

• Line graph

A graph of data in which consecutive data points are connected by line segments

• Linear correlation

A scatter plot with points clustered along a line. Correlation is positive if the slope is positive and negative if the slope is negative

• Normal distribution

A distribution of data shaped like the normal curve.

• Parametric equations for a line in space

The line through P0(x 0, y0, z 0) in the direction of the nonzero vector v = <a, b, c> has parametric equations x = x 0 + at, y = y 0 + bt, z = z0 + ct.

• Probability distribution

The collection of probabilities of outcomes in a sample space assigned by a probability function.

• Quotient identities

tan ?= sin ?cos ?and cot ?= cos ? sin ?

• Reference triangle

For an angle ? in standard position, a reference triangle is a triangle formed by the terminal side of angle ?, the x-axis, and a perpendicular dropped from a point on the terminal side to the x-axis. The angle in a reference triangle at the origin is the reference angle

• Row echelon form

A matrix in which rows consisting of all 0’s occur only at the bottom of the matrix, the first nonzero entry in any row with nonzero entries is 1, and the leading 1’s move to the right as we move down the rows.

• Semiperimeter of a triangle

One-half of the sum of the lengths of the sides of a triangle.

• Statute mile

5280 feet.

• Sum of a finite geometric series

Sn = a111 - r n 2 1 - r

• Sum of complex numbers

(a + bi) + (c + di) = (a + c) + (b + d)i

• Symmetric property of equality

If a = b, then b = a

• Upper bound test for real zeros

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

• xz-plane

The points x, 0, z in Cartesian space.

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