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# Solutions for Chapter 4.4: Trigonometric Functions of Any Angle

## Full solutions for Precalculus | 7th Edition

ISBN: 9780618643448

Solutions for Chapter 4.4: Trigonometric Functions of Any Angle

Solutions for Chapter 4.4
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##### ISBN: 9780618643448

This textbook survival guide was created for the textbook: Precalculus, edition: 7. Since 106 problems in chapter 4.4: Trigonometric Functions of Any Angle have been answered, more than 18288 students have viewed full step-by-step solutions from this chapter. Precalculus was written by and is associated to the ISBN: 9780618643448. Chapter 4.4: Trigonometric Functions of Any Angle includes 106 full step-by-step solutions. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Associative properties

a + (b + c) = (a + b) + c, a(bc) = (ab)c.

• Characteristic polynomial of a square matrix A

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

• Continuous at x = a

lim x:a x a ƒ(x) = ƒ(a)

• Difference of complex numbers

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

• End behavior asymptote of a rational function

A polynomial that the function approaches as.

• Equivalent arrows

Arrows that have the same magnitude and direction.

• Focal width of a parabola

The length of the chord through the focus and perpendicular to the axis.

• Graph of parametric equations

The set of all points in the coordinate plane corresponding to the ordered pairs determined by the parametric equations.

• Inverse composition rule

The composition of a one-toone function with its inverse results in the identity function.

• Inverse tangent function

The function y = tan-1 x

• Lower bound test for real zeros

A test for finding a lower bound for the real zeros of a polynomial

• Measure of center

A measure of the typical, middle, or average value for a data set

• Multiplication property of equality

If u = v and w = z, then uw = vz

• Multiplicative inverse of a real number

The reciprocal of b, or 1/b, b Z 0

• nth root of unity

A complex number v such that vn = 1

• Parallel lines

Two lines that are both vertical or have equal slopes.

• Real part of a complex number

See Complex number.

• Simple harmonic motion

Motion described by d = a sin wt or d = a cos wt

• Sum of a finite geometric series

Sn = a111 - r n 2 1 - r

• Venn diagram

A visualization of the relationships among events within a sample space.

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