Modeling with Periodic Functions — Unit test Answers
13 verified answers3 views
21
Free Preview
Consider the relationship below, given .Which of the following best explains how this relationship and the value of sin can be used to find the other trigonometric values?
A
The values of sin and cos represent the legs of a right triangle with a hypotenuse of 1; therefore, solving for cos finds the unknown leg, and then all other trigonometric values can be found.
B
The values of sin and cos represent the angles of a right triangle; therefore, solving the relationship will find all three angles of the triangle, and then all trigonometric values can be found.
C
The values of sin and cos represent the angles of a right triangle; therefore, other pairs of trigonometric ratios will have the same sum, 1, which can then be used to find all other values.
D
The values of sin and cos represent the legs of a right triangle with a hypotenuse of –1, since is in Quadrant II; therefore, solving for cos finds the unknown leg, and then all other trigonometric values can be found.
22
Free Preview
Three trigonometric functions for a given angle are shown below.What are the coordinates of point (x, y) on the terminal ray of angle , assuming that the values above were not simplified?
A
(–5, 12)B
(5, –12)C
(–12, 5)D
(12, –5)23
What is 270° converted to radians?
A
StartFraction pi Over 6 EndFraction
B
StartFraction 3 Over 2 EndFraction
C
StartFraction 3 pi Over 2 EndFraction
D
324
Which is the graph of y = cos(x) + 3?
A
On a coordinate plane, a cosine curve has a maximum of 3 and a minimum of negative 3.
B
On a coordinate plane, a cosine curve has a maximum of 4 and a minimum of negative 2.
C
On a coordinate plane, a cosine curve has a maximum of negative 2 and a minimum of negative 4.
D
On a coordinate plane, a cosine curve has a maximum of 6 and a minimum of negative 0.
25
On the unit circle, where , when is undefined?
A
and
B
sine theta = cosine theta
C
and
D
sin theta = StartFraction 1 Over cosine theta EndFraction
Did you find these answers helpful?
Verified answers available
TRY EDGENUITY HACKS
- Auto Complete Exams
- Auto Complete Assignments
- Skip Videos Instantly
50,000+ students using this