3. Unit Circle
Common Values of Sine, Cosine, & Tangent
3. Unit Circle
Common Values of Sine, Cosine, & Tangent
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- Textbook Question
Use the unit circle shown to find the value of the trigonometric function.
cos π/6
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Use the unit circle shown to find the value of the trigonometric function.
sin (2π/3)
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Use the unit circle shown to find the value of the trigonometric function.
tan 11π/6
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The unit circle has been divided into twelve equal arcs, corresponding to t-values of
0, π/6, π/3, π/2, 2π/3, 5π/6, π, 7π/6, 4π/3, 3π/2, 5π/3, 11π/6, and 2π
Use the (x,y) coordinates in the figure to find the value of each trigonometric function at the indicated real number, t, or state that the expression is undefined.
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sin 3π/2
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