Precalculus 7th Edition - Solutions by Chapter

A value ƒ(c) is an absolute maximum value of ƒ if ƒ(c) ? ƒ(x) for all x in the domain of ƒ.

A combination of variables and constants involving addition, subtraction, multiplication, division, powers, and roots

An observational study that gathers data from an entire population

(r(cos ? + i sin ?))n = r n (cos n? + i sin n?)

Any solution of the resulting equation that is not a solution of the original equation.

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

See Mathematical induction.

Zeros of a function that are irrational numbers.

An equation that can be written in the form ax + b = 0, where a and b are real numbers and a Z 0

The line segment through the foci of an ellipse with endpoints on the ellipse

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

A function ƒ for which there is a positive number c such that for every value t in the domain of ƒ. The smallest such number c is the period of the function.

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.

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

A function that assigns real-number values to the outcomes in a sample space.

A sequence defined by giving the first term (or the first few terms) along with a procedure for finding the subsequent terms.

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

Methods for solving systems of linear equations.

A number that measures a quantitative variable for a sample from a population.

A set of equations or inequalities.