Front
What is the value of $\sin(\pi/6)$?
Back
1/2
Corresponds to the y-coordinate at 30 degrees on the unit circle.
Public Deck
Trigonometry - 35 Essential Concepts
Master trigonometry with 35 flashcards covering the unit circle, identities, equations, and graphing techniques.
AnyFlashcards35 cards
Preview
Front
What is the value of $\cos(\pi/3)$?
Back
1/2
Corresponds to the x-coordinate at 60 degrees on the unit circle.
Front
What is the value of $\tan(\pi/4)$?
Back
1
Since $\sin(\pi/4) = \cos(\pi/4)$, the ratio $\sin/\cos$ equals 1.
Front
What is the value of $\sin(\pi/2)$?
Back
1
The highest point on the unit circle (0, 1).
Front
What is the value of $\cos(\pi)$?
Back
-1
The leftmost point on the unit circle (-1, 0).
Front
What is the value of $\sin(3\pi/2)$?
Back
-1
The lowest point on the unit circle (0, -1).
Front
What is the value of $\cos(2\pi/3)$?
Back
-1/2
Located in Quadrant II where cosine is negative.
Front
What is the value of $\tan(5\pi/6)$?
Back
-\sqrt{3}/3
Calculated as $(1/2) / (-\sqrt{3}/2)$ in Quadrant II.
Front
What is the value of $\sin(7\pi/4)$?
Back
-\sqrt{2}/2
Located in Quadrant IV where sine is negative.
Front
What is the value of $\cos(11\pi/6)$?
Back
\sqrt{3}/2
Located in Quadrant IV where cosine is positive.
+ 25 more cards
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