Trigonometric Identities
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Last updated 9:59 PM on 1/19/26
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20 Terms
1
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csc(x)
1/sin(x)
2
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sec(x)
1/cos(x)
3
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cot(x)
1/tan(x)
4
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tan(x)
sin(x)/cos(x)
5
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cot(x)
cos(x)/sin(x)
6
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sin²(x)+cos²(x)
1
7
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1+tan²(x)
sec²(x)
8
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1+cot²(x)
csc²(x)
9
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sin(x)
cos(pi/2-x)
10
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cos(x)
sin(pi/2-x)
11
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csc(x)
sec(pi/2-x)
12
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sec(x)
csc(pi/2-x)
13
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tan(x)
cot(pi/2-x)
14
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cot(x)
tan(pi/2-x)
15
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sin(-x)
-sin(x)
16
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csc(-x)
-csc(x)
17
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cos(-x)
cos(x)
18
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sec(-x)
sec(x)
19
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tan(-x)
-tan(x)
20
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cot(-x)
-cot(x)
Note 
Flashcards (124)