TeacherŐs Resource
By Rebecca Adcock
Solutions to Lesson
Assessments
Lesson #1: Angles
1.
2. a. 270 degrees
b. 540 degrees
3. a. (-200+360k) degrees,
where k is Z ; 160 degrees
b. (-450+360k) degrees, k is Z; 270 degrees
4. 369,000 degrees
Lesson #2: Radians
1. a. 
b.
2. a. 195 degrees
b. 292.2 degrees
3. a. 6 degrees
b. 29 degrees
c. 
d. 
Lesson #3: Triangles
1. 8.5 feet
2. RS=16, RT=
HJ= 
, IJ=
AC=
, AB=
Lesson
#4: Trigonometric Functions
1. 2.86
2. -0.3125
3.
Various.
Lesson #5: Unit Circle
1.
2. 
3.
Various.
Lesson
#6: Sine and Cosine Graphs
1. 
2. 
3. Properties of cosine graph
á
The period is 
.
á
The domain is the set of
all real numbers.
á
The range is the set of
real numbers between -1 and 1 inclusive.
á
The x-intercepts are
located at 
.
á
The y-intercept is 1.
á
The maximum values of
the function are 
and they occur when 
where n is even integer or zero.
á
The minimum values are 
and they occur when 
where n is odd
integer.