How do we determine when there is one or two cases for the law of sines

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Mathematics
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11th Grade - University
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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 angle between 0 and π/2 where cosine equals 1/2?
π/2
π/4
π/3
π/6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which angle corresponds to sine of theta equaling 1/2 on the unit circle?
π/6
π/3
π/2
π/4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the other angle, besides π/6, where sine equals 1/2?
π/2
5π/6
2π/3
π
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the obtuse angle when given an acute angle in trigonometry?
Multiply the acute angle by 2
Add 90 degrees to the acute angle
Subtract the acute angle from 180 degrees
Divide the acute angle by 2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to consider both acute and obtuse angles in trigonometric solutions?
To ensure all possible solutions are considered
To reduce the number of solutions
To simplify calculations
To avoid using inverse functions
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