unit 3- precalc 3.12 terms
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Last updated 12:11 AM on 4/1/26
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24 Terms
1
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sinx
1/cscx
2
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cscx
1/sinx
3
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cosx
1/secx
4
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secx
1/cosx
5
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- tanx
sinx/cosx
6
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- tanx
1/cotx
7
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- cotx
cosx/sinx
8
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- cotx
1/tanx
9
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sin²x =
1-cos²x
10
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cos²x =
1-sin²x
11
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1=
csc²x- cot²x
12
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1=?
sec²x-tan²x
13
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csc²x=
1+cot²x
14
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sec²x=
1+tan²x
15
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cot²x=
csc²x-1
16
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tan²x=
sec²x-1
17
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sin(α+β)
sinα×cosβ + cosα×sinβ
18
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cos(α+β)=
cosα×cosβ - sinα×sinβ
19
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sin(α-β)
sinα×cosβ - cosα×sinβ
20
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cos(α-β)
cosα×cosβ + sinα×sinβ
21
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sin(2α)
2sinα×cosα
22
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- cos(2α)
cos²α-sin²α
23
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- cos(2α)
1-2sin²α
24
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- cos(2α)
2cos²α-1
