
Understanding Cosine Values and Inverses

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

Thomas White
FREE Resource
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33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What common mistake do students make when dealing with cosine inverse?
They assume cosine and its inverse always cancel each other out.
They forget to apply the inverse function.
They confuse sine and cosine functions.
They apply the wrong trigonometric identity.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to follow the order of operations in trigonometric compositions?
To ensure the correct angle is found.
To simplify the equation.
To avoid unnecessary calculations.
To apply the correct trigonometric identity.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of restrictions in trigonometric functions?
They are only applicable to sine functions.
They determine the range of possible angles.
They help in simplifying the equation.
They are used to find the hypotenuse.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can reference angles help in solving trigonometric problems?
They are irrelevant in trigonometry.
They are only used for sine functions.
They eliminate the need for calculations.
They provide a simpler angle to work with.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the reference angle easier to remember?
It is irrelevant in trigonometry.
It is always 45 degrees.
It is always in the first quadrant.
It simplifies calculations.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the cosine of pi/4?
1
√2/2
0
1/2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which quadrant is the cosine positive?
Second and third
First and second
Third and fourth
First and fourth
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