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# Solutions for Chapter 9.2: Arithmetic Sequences and Partial Sums

## Full solutions for Precalculus with Limits | 3rd Edition

ISBN: 9781133947202

Solutions for Chapter 9.2: Arithmetic Sequences and Partial Sums

Solutions for Chapter 9.2
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##### ISBN: 9781133947202

Chapter 9.2: Arithmetic Sequences and Partial Sums includes 93 full step-by-step solutions. Precalculus with Limits was written by and is associated to the ISBN: 9781133947202. This textbook survival guide was created for the textbook: Precalculus with Limits, edition: 3. This expansive textbook survival guide covers the following chapters and their solutions. Since 93 problems in chapter 9.2: Arithmetic Sequences and Partial Sums have been answered, more than 35913 students have viewed full step-by-step solutions from this chapter.

Key Calculus Terms and definitions covered in this textbook
• Acute triangle

A triangle in which all angles measure less than 90°

• Aphelion

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

• Definite integral

The definite integral of the function ƒ over [a,b] is Lbaƒ(x) dx = limn: q ani=1 ƒ(xi) ¢x provided the limit of the Riemann sums exists

• Difference of two vectors

<u1, u2> - <v1, v2> = <u1 - v1, u2 - v2> or <u1, u2, u3> - <v1, v2, v3> = <u1 - v1, u2 - v2, u3 - v3>

• Equilibrium price

See Equilibrium point.

• Focus, foci

See Ellipse, Hyperbola, Parabola.

• Geometric sequence

A sequence {an}in which an = an-1.r for every positive integer n ? 2. The nonzero number r is called the common ratio.

• Hypotenuse

Side opposite the right angle in a right triangle.

• Infinite sequence

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

• Mathematical model

A mathematical structure that approximates phenomena for the purpose of studying or predicting their behavior

• Midpoint (in Cartesian space)

For the line segment with endpoints (x 1, y1, z 1) and (x2, y2, z2), ax 1 + x 22 ,y1 + y22 ,z 1 + z 22 b

• Natural exponential function

The function ƒ1x2 = ex.

• Polynomial function

A function in which ƒ(x)is a polynomial in x, p. 158.

• Polynomial interpolation

The process of fitting a polynomial of degree n to (n + 1) points.

• Range of a function

The set of all output values corresponding to elements in the domain.

• Recursively defined sequence

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

• Semiminor axis

The distance from the center of an ellipse to a point on the ellipse along a line perpendicular to the major axis.

• Vertex of an angle

See Angle.

• Weights

See Weighted mean.

• xy-plane

The points x, y, 0 in Cartesian space.

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