
Solving Trigonometric Equations with the Unit Circle

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard
Standards-aligned

Mia Campbell
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of isolating the sine function in the equation and finding its value on the unit circle?
sine of x equals 0
sine of x equals 1/2
sine of x equals 1
sine of x equals -1/2
Tags
CCSS.HSF.TF.A.2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where on the unit circle does sine equal -1/2?
PI over 3 and 2 PI over 3
PI over 4 and 3 PI over 4
PI over 6 and 5 PI over 6
7 PI over 6 and 11 PI over 6
Tags
CCSS.HSF.TF.B.7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At which angles on the unit circle does cosine equal 1/2?
PI over 6, 5 PI over 6
PI over 3, 2 PI over 3
PI over 3, 4 PI over 3
PI over 4, 3 PI over 4
Tags
CCSS.HSF.TF.A.2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What values does cosine take at PI over 3 and 5 PI over 3?
0 and 1
1 and -1
1/2 and 1/2
1/2 and -1/2
Tags
CCSS.HSF.TF.A.2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you express a general solution for a trigonometric equation involving cosine?
2 PI over 3 plus PI n
PI over 4 plus PI n
PI over 6 plus 2 PI n
PI over 3 plus PI n
Tags
CCSS.HSF.TF.B.7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the general solution for cosine values repeating around the unit circle?
Add multiples of PI
Add multiples of 2 PI
Multiply by PI
Subtract multiples of PI
Tags
CCSS.HSF.TF.B.7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of factoring the trigonometric equation and setting the factors to zero?
sine of x equals -1/2 and sine of x equals 1/2
sine of x equals 0 and sine of x equals 1
sine of x equals -1/2 and sine of x equals -1
sine of x equals 1/2 and sine of x equals 1
Tags
CCSS.HSF.TF.B.7
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