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# Solutions for Chapter 9.4: VECTORS IN THE PLANE: AN ALGEBRAIC APPROACH

## 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 9.4: VECTORS IN THE PLANE: AN ALGEBRAIC APPROACH

Solutions for Chapter 9.4
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##### ISBN: 9780534402303

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 9.4: VECTORS IN THE PLANE: AN ALGEBRAIC APPROACH includes 77 full step-by-step solutions. Since 77 problems in chapter 9.4: VECTORS IN THE PLANE: AN ALGEBRAIC APPROACH have been answered, more than 25566 students have viewed full step-by-step solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Annuity

A sequence of equal periodic payments.

• Augmented matrix

A matrix that represents a system of equations.

• Cardioid

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

• Chord of a conic

A line segment with endpoints on the conic

• Conic section (or conic)

A curve obtained by intersecting a double-napped right circular cone with a plane

• Coterminal angles

Two angles having the same initial side and the same terminal side

• Difference identity

An identity involving a trigonometric function of u - v

• Dihedral angle

An angle formed by two intersecting planes,

• 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

• Ellipse

The set of all points in the plane such that the sum of the distances from a pair of fixed points (the foci) is a constant

• Factoring (a polynomial)

Writing a polynomial as a product of two or more polynomial factors.

• Horizontal translation

A shift of a graph to the left or right.

• Imaginary part of a complex number

See Complex number.

• Interquartile range

The difference between the third quartile and the first quartile.

• Projection of u onto v

The vector projv u = au # vƒvƒb2v

• Quotient of functions

a ƒ g b(x) = ƒ(x) g(x) , g(x) ? 0

• Quotient rule of logarithms

logb a R S b = logb R - logb S, R > 0, S > 0

• Slant line

A line that is neither horizontal nor vertical

• Standard deviation

A measure of how a data set is spread

• Statute mile

5280 feet.