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# Solutions for Chapter 10.9: Thomas' Calculus: Early Transcendentals 13th Edition

## Full solutions for Thomas' Calculus: Early Transcendentals | 13th Edition

ISBN: 9780321884077

Solutions for Chapter 10.9

Solutions for Chapter 10.9
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##### ISBN: 9780321884077

This expansive textbook survival guide covers the following chapters and their solutions. Since 58 problems in chapter 10.9 have been answered, more than 66902 students have viewed full step-by-step solutions from this chapter. Thomas' Calculus: Early Transcendentals was written by and is associated to the ISBN: 9780321884077. Chapter 10.9 includes 58 full step-by-step solutions. This textbook survival guide was created for the textbook: Thomas' Calculus: Early Transcendentals , edition: 13.

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

See Inverse tangent function.

• Arrow

The notation PQ denoting the directed line segment with initial point P and terminal point Q.

• Circle

A set of points in a plane equally distant from a fixed point called the center

• Cosine

The function y = cos x

• Elementary row operations

The following three row operations: Multiply all elements of a row by a nonzero constant; interchange two rows; and add a multiple of one row to another row

• Focus, foci

See Ellipse, Hyperbola, Parabola.

• Inferential statistics

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

• Interval notation

Notation used to specify intervals, pp. 4, 5.

• Inverse cosecant function

The function y = csc-1 x

• NDER ƒ(a)

See Numerical derivative of ƒ at x = a.

• Odd-even identity

For a basic trigonometric function f, an identity relating f(x) to f(-x).

• Opens upward or downward

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

• Pythagorean identities

sin2 u + cos2 u = 1, 1 + tan2 u = sec2 u, and 1 + cot2 u = csc2 u

• Quartic regression

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

• Rational numbers

Numbers that can be written as a/b, where a and b are integers, and b ? 0.

• Solve a triangle

To find one or more unknown sides or angles of a triangle

• Transpose of a matrix

The matrix AT obtained by interchanging the rows and columns of A.

• Unbounded interval

An interval that extends to -? or ? (or both).

• Vertical line

x = a.

• Xscl

The scale of the tick marks on the x-axis in a viewing window.

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