trig idendities
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19 Terms
1
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tanx
sinx/cosx
2
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cotx
cosx/sinx
3
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secx
1/cosx
4
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cscx
1/sinx
5
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sin²x+cos²x
1
6
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1+tanx
sec²x
7
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1+cot²x
csc²x
8
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sin²(x/2)
1/2(1-cosx)
9
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cos²(x/2)
1/2(1+cosx)
10
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sin2x
2sinxcosx
11
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cos2x
cos²x-sin²x
12
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cos2x
2cos²x-1
13
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cos2x
1-2sin²x
14
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sin(a+b)
sinacosb+cosasinb
15
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cos(a+b)
cosacosb-sinasinb
16
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tan(a+b)
(tana+tanb)/1-tanatanb
17
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sin(a-b)
sinacosb-cosasinb
18
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cos(a-b)
cosacosb+sinasinb
19
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tan(a-b)
(tana-tanb)/1+tanatanb
Note 
Flashcards (160)