Precalculus 7th Edition - Solutions by Chapter

P(A or B) = P(A) + P(B) - P(A and B). If A and B are mutually exclusive events, then P(A or B) = P(A) + P(B)

A sequence {an} in which an = an-1 + d for every integer n ? 2 . The number d is the common difference.

The numbers in Pascal’s triangle: nCr = anrb = n!r!1n - r2!

See Arithmetic sequence.

See Linear programming problem.

See Complex number.

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

Point where a curve crosses the x-, y-, or z-axis in a graph.

The notation dy/dx for the derivative of ƒ.

A graph of a polar equation of the form r2 = a2 sin 2u or r 2 = a2 cos 2u.

A function that can be written in the form ƒ(x) = mx + b, where and b are real numbers

Length of 1 minute of arc along the Earth’s equator.

A distribution of data shaped like the normal curve.

The eight regions of space determined by the coordinate planes.

A function in which each element of the range corresponds to exactly one element in the domain

The order of an m x n matrix is m x n.

See Circle graph.

A trigonometric identity that reduces the power to which the trigonometric functions are raised.

The number of outcomes in the event divided by the number of outcomes in the sample space.

The set of all solutions of an inequality