 5.4.43: In Exercises 4344, express each product as a sum or difference. sin...
 5.4.44: In Exercises 4344, express each product as a sum or difference. sin...
 5.4.45: In Exercises 4546, express each sum or difference as a product. If ...
 5.4.46: In Exercises 4546, express each sum or difference as a product. If ...
 5.4.47: In Exercises 4748, verify each identity cos 3x + cos 5xcos 3x  cos...
 5.4.48: In Exercises 4748, verify each identity sin 2x + sin 6xsin 2x  sin...
 5.4.49: The graph with the given equation is shown in a c 0, 2p, p 2 d by [...
Solutions for Chapter 5.4: Precalculus 5th Edition
Full solutions for Precalculus  5th Edition
ISBN: 9780321837349
Solutions for Chapter 5.4
Get Full SolutionsPrecalculus was written by and is associated to the ISBN: 9780321837349. Since 7 problems in chapter 5.4 have been answered, more than 10522 students have viewed full stepbystep solutions from this chapter. Chapter 5.4 includes 7 full stepbystep solutions. This textbook survival guide was created for the textbook: Precalculus, edition: 5. This expansive textbook survival guide covers the following chapters and their solutions.

Algebraic model
An equation that relates variable quantities associated with phenomena being studied

Aphelion
The farthest point from the Sun in a planet’s orbit

Axis of symmetry
See Line of symmetry.

Binomial probability
In an experiment with two possible outcomes, the probability of one outcome occurring k times in n independent trials is P1E2 = n!k!1n  k2!pk11  p) nk where p is the probability of the outcome occurring once

Divergence
A sequence or series diverges if it does not converge

Equivalent equations (inequalities)
Equations (inequalities) that have the same solutions.

Identity function
The function ƒ(x) = x.

Infinite sequence
A function whose domain is the set of all natural numbers.

Integrable over [a, b] Lba
ƒ1x2 dx exists.

Lefthand limit of f at x a
The limit of ƒ as x approaches a from the left.

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

Partial fractions
The process of expanding a fraction into a sum of fractions. The sum is called the partial fraction decomposition of the original fraction.

Phase shift
See Sinusoid.

Quadratic function
A function that can be written in the form ƒ(x) = ax 2 + bx + c, where a, b, and c are real numbers, and a ? 0.

Reference triangle
For an angle ? in standard position, a reference triangle is a triangle formed by the terminal side of angle ?, the xaxis, and a perpendicular dropped from a point on the terminal side to the xaxis. The angle in a reference triangle at the origin is the reference angle

Sum of a finite geometric series
Sn = a111  r n 2 1  r

Sum of functions
(ƒ + g)(x) = ƒ(x) + g(x)

Trigonometric form of a complex number
r(cos ? + i sin ?)

Velocity
A vector that specifies the motion of an object in terms of its speed and direction.

Zero factor property
If ab = 0 , then either a = 0 or b = 0.