trig identities
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Last updated 5:53 PM on 5/14/25
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15 Terms
1
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csc
1/sin
2
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sec
1/cos
3
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cot
1/tan
4
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tan
sin/cos
5
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sin pythag
cos² + sin² = 1
6
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csc pythag
1 + cot² = csc²
7
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sec pythag
1+ tan² = sec²
8
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cofunc sin
sin = cos(90-x)
9
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cofunc sec
sec = csc(90-x)
10
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cofunc tan
tan = cot (90-x)
11
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cos(-x)
cosx
12
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tan(-x)
-tanx
13
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sin(-x)
-sinx
14
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30,60,90
1, 1/2, √3/2
15
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45,45,90
1,√2/2,√2/2
Note 
Flashcards (152)