- 7-188.8.131.52: Mark the following angles on a unit circle and give the coordinates...
- 7-184.108.40.206: In Exercises 24, what angle (in degrees) corresponds to the given n...
- 7-220.127.116.11: In Exercises 24, what angle (in degrees) corresponds to the given n...
- 7-18.104.22.168: In Exercises 24, what angle (in degrees) corresponds to the given n...
- 7-22.214.171.124: For Exercises 56, sketch and find the coordinates of the point corr...
- 7-126.96.36.199: For Exercises 56, sketch and find the coordinates of the point corr...
- 7-188.8.131.52: In Exercises 710, find (a) sin (b) cos
- 7-184.108.40.206: In Exercises 710, find (a) sin (b) cos
- 7-220.127.116.11: In Exercises 710, find (a) sin (b) cos
- 7-18.104.22.168: In Exercises 710, find (a) sin (b) cos
- 7-22.214.171.124: Sketch the angles = 420 and = 150 as a displacement on a Ferris whe...
- 7-126.96.36.199: Find an angle , with 0 << 360, that has the same (a) Cosine as 240 ...
- 7-188.8.131.52: Find an angle , with 0 << 360, that has the same (a) Cosine as 53 (...
- 7-184.108.40.206: (a) Given that P (0.707, 0.707) is a point on the unit circle with ...
- 7-220.127.116.11: For the angle shown in Figure 7.23, sketch each of the following an...
- 7-18.104.22.168: Let be an angle in the first quadrant, and suppose sin = a. Evaluat...
- 7-22.214.171.124: Explain in your own words the definition of sin on the unit circle ...
- 7-126.96.36.199: The revolving door in Figure 7.25 rotates counterclockwise and has ...
- 7-188.8.131.52: A revolving door (that rotates counterclockwise in Figure 7.26) was...
- 7-184.108.40.206: Calculate sin 45 and cos 45 exactly. Use the fact that the point P ...
- 7-220.127.116.11: (a) In Figure 7.27, what can be said about the lengths of the three...
- 7-18.104.22.168: A kite flier wondered how high her kite was flying. She used a prot...
- 7-22.214.171.124: A ladder 3 meters long leans against a house, making an angle with ...
- 7-126.96.36.199: You are parasailing on a rope that is 125 feet long behind a boat. ...
Solutions for Chapter 7-2: THE SINE AND COSINE FUNCTIONS
Full solutions for Functions Modeling Change: A Preparation for Calculus | 4th Edition
An angle whose measure is between 0° and 90°
Additive inverse of a real number
The opposite of b , or -b
A combination of variables and constants involving addition, subtraction, multiplication, division, powers, and roots
a b = aa 1 b b, b Z 0
Focal length of a parabola
The directed distance from the vertex to the focus.
Reciprocal of the period of a sinusoid.
An equation that is always true throughout its domain.
Inverse sine function
The function y = sin-1 x
The notation dy/dx for the derivative of ƒ.
Linear inequality in two variables x and y
An inequality that can be written in one of the following forms: y 6 mx + b, y … mx + b, y 7 mx + b, or y Ú mx + b with m Z 0
Logarithmic function with base b
The inverse of the exponential function y = bx, denoted by y = logb x
A relationship between two variables in which higher values of one variable are generally associated with lower values of the other variable.
An equation in r and ?.
Range of a function
The set of all output values corresponding to elements in the domain.
Zeros of a function that are real numbers.
A set of ordered pairs of real numbers.
Root of a number
See Principal nth root.
Standard form of a complex number
a + bi, where a and b are real numbers
The x-value of the left side of the viewing window,.
Usually the third dimension in Cartesian space.