Solving for cosine by factoring

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Mathematics, Social Studies
•
11th Grade - University
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common mistake students make when solving trigonometric equations?
Subtracting the same term from both sides
Adding a constant to both sides
Multiplying both sides by zero
Dividing by the variable
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What property is used to solve the equation after factoring?
Zero Product Property
Distributive Property
Associative Property
Commutative Property
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When is cosine of X equal to zero on the unit circle?
At 0 and π
At π/2 and 3π/2
At π and 2π
At π/4 and 3π/4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the graph of cosine help in finding solutions beyond the unit circle?
It repeats every 2π
It shows that cosine is always positive
It shows that cosine is always negative
It repeats every π
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the distance between each angle when writing all solutions for cosine?
π/2
π/4
2π
π
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can all solutions for the equation be represented?
Using π times N
Using 2π times N
Using π/2 times N
Using π/4 times N
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the periodicity of the cosine function in solving equations?
It limits solutions to the first quadrant
It allows for infinite solutions
It only applies to sine functions
It restricts solutions to positive angles
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