
Trigonometric Functions and Unit Circle

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary method used to evaluate trigonometric functions in this tutorial?
Using the unit circle
Using a calculator
Using a protractor
Using a graphing tool
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When locating angles on the unit circle, where does the initial side of an angle start?
On the negative y-axis
On the positive y-axis
On the negative x-axis
On the positive x-axis
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the sine of an angle determined using the unit circle?
By the x-coordinate of the intersection point
By the angle's degree measure
By the y-coordinate of the intersection point
By the radius of the circle
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of tangent for the angle 5π/4?
0
Undefined
-1
1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the reciprocal identity of sine?
Cotangent
Cosecant
Secant
Tangent
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you rationalize a denominator that contains a square root?
Multiply by the reciprocal of the square root
Add the square root
Divide by the square root
Multiply by the square root
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of secant for the angle 5π/4?
-Square root of 2
Square root of 2
1
-1
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