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# Solutions for Chapter 2.4: Precalculus 5th Edition ## Full solutions for Precalculus | 5th Edition

ISBN: 9780321837349 Solutions for Chapter 2.4

Solutions for Chapter 2.4
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##### ISBN: 9780321837349

Chapter 2.4 includes 8 full step-by-step solutions. Since 8 problems in chapter 2.4 have been answered, more than 11071 students have viewed full step-by-step solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions. Precalculus was written by and is associated to the ISBN: 9780321837349. This textbook survival guide was created for the textbook: Precalculus, edition: 5.

Key Calculus Terms and definitions covered in this textbook
• Annuity

A sequence of equal periodic payments.

• Boxplot (or box-and-whisker plot)

A graph that displays a five-number summary

• Equilibrium point

A point where the supply curve and demand curve intersect. The corresponding price is the equilibrium price.

• Event

A subset of a sample space.

• Graphical model

A visible representation of a numerical or algebraic model.

• Imaginary axis

See Complex plane.

• Inverse tangent function

The function y = tan-1 x

• Modulus

See Absolute value of a complex number.

• Orthogonal vectors

Two vectors u and v with u x v = 0.

• Polar axis

See Polar coordinate system.

• Power rule of logarithms

logb Rc = c logb R, R 7 0.

• Range (in statistics)

The difference between the greatest and least values in a data set.

• Resistant measure

A statistical measure that does not change much in response to outliers.

• Richter scale

A logarithmic scale used in measuring the intensity of an earthquake.

• Second

Angle measure equal to 1/60 of a minute.

• Sum of complex numbers

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

A graph in which (-x, y) is on the graph whenever (x, y) is; or a graph in which (-r, -?) or (r, ?, -?) is on the graph whenever (r, ?) is

• Unbounded interval

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

• xy-plane

The points x, y, 0 in Cartesian space.

• Zero vector

The vector <0,0> or <0,0,0>.

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