Trig
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29 Terms
1
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secθ
2
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cotθ
ALSO EQUAL TO cosθ/sinθ
3
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tanθ
4
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cscθ
5
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sin0
0/r = 0
6
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cos0
x/r = x/x = 1
7
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tan0
0/x
8
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csc0
undefined
9
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sec0
r/x = x/x = 1
10
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cot0
undefined
11
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sin90
1
12
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sin180
0
13
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sin270
-1
14
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cos90
undefined
15
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cos180
-1
16
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cos270
0
17
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tan90
undefined
18
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tan180
0
19
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tan270
undefined
20
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csc90
1
21
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csc180
undefined
22
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csc270
-1
23
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sec90
undefined
24
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sec180
-1
25
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sec270
undefined
26
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cot90
0
27
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cot180
undefined
28
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cot270
0
29
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Pythagorean identities
cos²t + sin²t = 1
1 + tan²t = sec²
1 + cot²t = csc²t
Note 
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