
How to solve a trigonometric equation by using factoring
Interactive Video
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Mathematics
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11th Grade - University
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Practice Problem
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the equation X^3 = X?
Add X to both sides
Get all X terms on one side
Divide both sides by X
Multiply both sides by X
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When factoring the expression X^3 - X, what common factor is taken out?
X^2
1
X
X^3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the equation cosine cubed of X minus cosine of X equals zero, what is the first step to solve it?
Divide both sides by cosine of X
Factor out cosine of X
Multiply both sides by cosine of X
Add cosine of X to both sides
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the possible values of cosine of X when cosine squared of X equals 1?
1 and 2
0 and 1
1 and -1
0 and -1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On the unit circle, at which angles is the cosine of X equal to zero?
π/3 and 2π/3
π/4 and 3π/4
π/2 and 3π/2
0 and π
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