Algebra 2 - Unit Circle Quiz Review
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21 Terms
1
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Quadrant I
sin θ > 0
cos θ > 0
tan θ > 0
2
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Quadrant II
sin θ > 0
cos θ < 0
tan θ < 0
3
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Quadrant III
sin θ < 0
cos θ < 0
tan θ > 0
4
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Quadrant IV
sin θ < 0
cos θ > 0
tan θ < 0
5
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tan 240 / 4π/3
√3
6
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sin 45 =
√2/2
7
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cos 45 =
√2/2
8
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tan 45 =
1
9
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sin 30 =
1/2
10
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cos 30 =
√3/2
11
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tan 30 =
√3/3
12
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sin 60 =
√3/2
13
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cos 60 =
1/2
14
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tan 60 =
√3
15
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sin 45 is the same as…
cos 45
16
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sin 30 is the same as…
cos 60
17
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sin 60 is the same as
cos 30
18
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sin θ is
y
19
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cos θ is
x
20
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tan θ is
y/x (sin θ/cos θ)
21
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The coordinates of P can be written as ______________________
(x, y), (cos θ, sin θ)