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# Solutions for Chapter 2.4: Complex Numbers ## Full solutions for Precalculus with Limits | 3rd Edition

ISBN: 9781133947202 Solutions for Chapter 2.4: Complex Numbers

Solutions for Chapter 2.4
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##### ISBN: 9781133947202

Chapter 2.4: Complex Numbers includes 101 full step-by-step solutions. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Precalculus with Limits, edition: 3. Since 101 problems in chapter 2.4: Complex Numbers have been answered, more than 34758 students have viewed full step-by-step solutions from this chapter. Precalculus with Limits was written by and is associated to the ISBN: 9781133947202.

Key Calculus Terms and definitions covered in this textbook
• Boundary

The set of points on the “edge” of a region

• Distance (in Cartesian space)

The distance d(P, Q) between and P(x, y, z) and Q(x, y, z) or d(P, Q) ((x ) - x 2)2 + (y1 - y2)2 + (z 1 - z 2)2

• Factored form

The left side of u(v + w) = uv + uw.

• Graph of an equation in x and y

The set of all points in the coordinate plane corresponding to the pairs x, y that are solutions of the equation.

• Grapher or graphing utility

Graphing calculator or a computer with graphing software.

• Imaginary part of a complex number

See Complex number.

• Infinite discontinuity at x = a

limx:a + x a ƒ(x) = q6 or limx:a - ƒ(x) = q.

• Limit at infinity

limx: qƒ1x2 = L means that ƒ1x2 gets arbitrarily close to L as x gets arbitrarily large; lim x:- q ƒ1x2 means that gets arbitrarily close to L as gets arbitrarily large

• Line of symmetry

A line over which a graph is the mirror image of itself

• Logarithm

An expression of the form logb x (see Logarithmic function)

• Matrix, m x n

A rectangular array of m rows and n columns of real numbers

• Normal distribution

A distribution of data shaped like the normal curve.

• Number line graph of a linear inequality

The graph of the solutions of a linear inequality (in x) on a number line

• Numerical derivative of ƒ at a

NDER f(a) = ƒ1a + 0.0012 - ƒ1a - 0.00120.002

• Polar axis

See Polar coordinate system.

• Probability distribution

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

• RRAM

A Riemann sum approximation of the area under a curve ƒ(x) from x = a to x = b using x1 as the right-hand end point of each subinterval.

• Symmetric property of equality

If a = b, then b = a

• Tree diagram

A visualization of the Multiplication Principle of Probability.

• Unit vector

Vector of length 1.

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