Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign) 4th Edition - Solutions by Chapter

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

The factor Ae-a in an equation such as y = Ae-at cos bt

a(b + c) = ab + ac and related properties

Vectors with the same magnitude and direction.

A variable that affects a response variable.

The directed distance from the vertex to the focus.

See Ellipse, Hyperbola, Parabola.

Reciprocal of the period of a sinusoid.

The amount of time required for half of a radioactive substance to decay.

A calculator approximation to ?ab ƒ(x)dx

For a basic trigonometric function f, an identity relating f(x) to f(-x).

A set is ordered if it is possible to compare any two elements and say that one element is “less than” or “greater than” the other.

In an experimental study, an inactive treatment that is equivalent to the active treatment in every respect except for the factor about which an inference is to be made. Subjects in a blind experiment do not know if they have been given the active treatment or the placebo.

Angle generated by a counterclockwise rotation.

A variable (in statistics) that takes on numerical values for a characteristic being measured.

tan ?= sin ?cos ?and cot ?= cos ? sin ?

Any number that can be written as a decimal.

Finding the horizontal and vertical components of a vector.

A value of the variable (or values of the variables) for which the equation or inequality is true

A set of points in Cartesian space equally distant from a fixed point called the center.