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# Solutions for Chapter 8.1: Oblique Triangles and the Law of Sines ## Full solutions for Algebra and Trigonometry, | 3rd Edition

ISBN: 9780840068132 Solutions for Chapter 8.1: Oblique Triangles and the Law of Sines

Solutions for Chapter 8.1
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##### ISBN: 9780840068132

This textbook survival guide was created for the textbook: Algebra and Trigonometry,, edition: 3. Algebra and Trigonometry, was written by and is associated to the ISBN: 9780840068132. This expansive textbook survival guide covers the following chapters and their solutions. Chapter 8.1: Oblique Triangles and the Law of Sines includes 70 full step-by-step solutions. Since 70 problems in chapter 8.1: Oblique Triangles and the Law of Sines have been answered, more than 44956 students have viewed full step-by-step solutions from this chapter.

Key Calculus Terms and definitions covered in this textbook
• Angle

Union of two rays with a common endpoint (the vertex). The beginning ray (the initial side) can be rotated about its endpoint to obtain the final position (the terminal side)

• Cofunction identity

An identity that relates the sine, secant, or tangent to the cosine, cosecant, or cotangent, respectively

• Even function

A function whose graph is symmetric about the y-axis for all x in the domain of ƒ.

• Fibonacci sequence

The sequence 1, 1, 2, 3, 5, 8, 13, . . ..

• Hyperbola

A set of points in a plane, the absolute value of the difference of whose distances from two fixed points (the foci) is a constant.

• Logarithm

An expression of the form logb x (see Logarithmic function)

• LRAM

A Riemann sum approximation of the area under a curve ƒ(x) from x = a to x = b using x1 as the left-hand endpoint of each subinterval

• Mathematical induction

A process for proving that a statement is true for all natural numbers n by showing that it is true for n = 1 (the anchor) and that, if it is true for n = k, then it must be true for n = k + 1 (the inductive step)

• Multiplicative inverse of a matrix

See Inverse of a matrix

• Negative association

A relationship between two variables in which higher values of one variable are generally associated with lower values of the other variable.

• Negative numbers

Real numbers shown to the left of the origin on a number line.

• Perihelion

The closest point to the Sun in a planet’s orbit.

• Polar coordinate system

A coordinate system whose ordered pair is based on the directed distance from a central point (the pole) and the angle measured from a ray from the pole (the polar axis)

• Re-expression of data

A transformation of a data set.

• Remainder polynomial

See Division algorithm for polynomials.

• Right triangle

A triangle with a 90° angle.

• Shrink of factor c

A transformation of a graph obtained by multiplying all the x-coordinates (horizontal shrink) by the constant 1/c or all of the y-coordinates (vertical shrink) by the constant c, 0 < c < 1.

• Variable (in statistics)

A characteristic of individuals that is being identified or measured.

• Vertex of a cone

See Right circular cone.

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