How to evaluate for cos when given the value of sine with a right triangle

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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
Why is the constraint important in trigonometry?
It is used to find the perimeter of the triangle.
It helps in calculating the area of the triangle.
It tells you where the triangle is located.
It determines the size of the triangle.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which quadrants is the tangent function positive?
First and second quadrants
Second and third quadrants
Third and fourth quadrants
First and third quadrants
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the constraint tell us about the possible triangles when graphing sine?
The triangle must be in the second or fourth quadrant.
The triangle can be in any quadrant.
The triangle must be in the first or fourth quadrant.
The triangle must be in the first or third quadrant.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the cosine of an angle using the Pythagorean theorem?
By using the square root of the difference between the square of the hypotenuse and the square of the opposite side
By using the square root of the sum of the squares of the opposite and adjacent sides
By subtracting the square of the opposite side from the hypotenuse
By adding the squares of the opposite and adjacent sides
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the cosine value positive in the first quadrant?
Because the adjacent side is always positive
Because the hypotenuse is always positive
Because the constraint specifies it must be positive
Because both the adjacent and hypotenuse are positive
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