CW Exact Value of Trig Function
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the exact value of sin(7π/6)?
Back
-\frac{1}{2}
2.
FLASHCARD QUESTION
Front
What is the exact value of cos(-11π/3)?
Back
\frac{1}{2}
3.
FLASHCARD QUESTION
Front
What is the exact value of tan(-π/6)?
Back
-\frac{\sqrt{3}}{3}
4.
FLASHCARD QUESTION
Front
Define reference angle in trigonometry.
Back
The reference angle is the acute angle formed by the terminal side of an angle in standard position and the x-axis.
5.
FLASHCARD QUESTION
Front
What is the sine function?
Back
The sine function, sin(θ), is the ratio of the length of the opposite side to the hypotenuse in a right triangle.
6.
FLASHCARD QUESTION
Front
What is the cosine function?
Back
The cosine function, cos(θ), is the ratio of the length of the adjacent side to the hypotenuse in a right triangle.
7.
FLASHCARD QUESTION
Front
What is the tangent function?
Back
The tangent function, tan(θ), is the ratio of the sine and cosine functions: tan(θ) = sin(θ)/cos(θ).
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