Trigonometry
ACT · Flashcards · Recall
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QUESTION
What is the cotangent of an angle in terms of tangent?
QUESTION
What is the secant of a 60-degree angle?
QUESTION
What is
cos
(
π
3
)
\cos\left(\frac{\pi}{3}\right)
cos
(
3
π
)
?
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ANSWER
1
2
\frac{1}{2}
2
1
. From 60° angle in 30-60-90 triangle.
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