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Solutions for Chapter 9.3: Discrete Mathematics

Full solutions for Precalculus: Graphical, Numerical, Algebraic | 8th Edition

ISBN: 9780321656933

Solutions for Chapter 9.3: Discrete Mathematics

Solutions for Chapter 9.3
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ISBN: 9780321656933

Chapter 9.3: Discrete Mathematics includes 72 full step-by-step solutions. Precalculus: Graphical, Numerical, Algebraic was written by and is associated to the ISBN: 9780321656933. Since 72 problems in chapter 9.3: Discrete Mathematics have been answered, more than 43205 students have viewed full step-by-step solutions from this chapter. This textbook survival guide was created for the textbook: Precalculus: Graphical, Numerical, Algebraic, edition: 8th Edition. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Argument of a complex number

The argument of a + bi is the direction angle of the vector {a,b}.

• Basic logistic function

The function ƒ(x) = 1 / 1 + e-x

• Divergence

A sequence or series diverges if it does not converge

• Half-life

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

• Increasing on an interval

A function ƒ is increasing on an interval I if, for any two points in I, a positive change in x results in a positive change in.

• Independent events

Events A and B such that P(A and B) = P(A)P(B)

• Inverse cosine function

The function y = cos-1 x

• Major axis

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

• Negative linear correlation

See Linear correlation.

• Normal distribution

A distribution of data shaped like the normal curve.

• Odd-even identity

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

• Power rule of logarithms

logb Rc = c logb R, R 7 0.

• Pythagorean identities

sin2 u + cos2 u = 1, 1 + tan2 u = sec2 u, and 1 + cot2 u = csc2 u

Any one of the four parts into which a plane is divided by the perpendicular coordinate axes.

• Real number

Any number that can be written as a decimal.

• Solve graphically

Use a graphical method, including use of a hand sketch or use of a grapher. When appropriate, the approximate solution should be confirmed algebraically

• Standard representation of a vector

A representative arrow with its initial point at the origin

• Terminal side of an angle

See Angle.

• Upper bound test for real zeros

A test for finding an upper bound for the real zeros of a polynomial.

• Variance

The square of the standard deviation.

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