Trig Review
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Last updated 5:13 PM on 7/13/25
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28 Terms
1
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sin(x) =
opp / hyp
2
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cos(x) =
adj / hyp
3
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tan(x) =
sin(x) / cos(x)
4
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(triangle) tan(x) =
opp / adj
5
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sec(x) =
1 / cos(x)
6
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(triangle) sec(x) =
hyp / adj
7
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csc(x) =
1 / sin(x)
8
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(triangle) csc(x) =
hyp / opp
9
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cot(x) =
cos(x) / sin(x) => 1 / tan(x)
10
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(triangle) cot(x) =
adj /opp
11
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60, 30, 90 Triangle
12
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45, 45, 90 Triangle
13
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sin^2 + cos^2 =
1
14
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sec²x - tan²x =
1
15
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csc²x - cot²x =
1
16
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sin(0) =
0
17
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cos(0) =
1
18
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sin(π/6) =
1/2
19
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cos(π/6) =
√(3) / 2
20
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sin(π/4) =
√(2) / 2
21
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cos(π/4) =
√(2) / 2
22
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sin(π/3) =
√(3) / 2
23
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cos(π/3) =
1/2
24
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sin(π/2) =
1
25
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cos(π/2) =
0
26
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Unit Circle
27
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cot^2 + 1 =
csc^2
28
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tan^2 +1 =
sec^2
Note 
Flashcards (87)