Precalculus Unit 2
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Last updated 3:07 AM on 11/19/25
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16 Terms
1
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sin(-θ)
-sinθ
2
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sin(A+B)
sinAcosB+sinBcosA
3
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cos(2θ)
cos²θ-sin²θ
4
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cos(A-B)
cosAcosB+sinAsinB
5
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cos(2θ)
1-2sin²θ
6
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tan²θ
sec²θ-1
7
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cos(A+B)
cosAcosB-sinAsinB
8
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sin(A-B)
sinAcosB-sinBcosA
9
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sin²θ
1-cos²θ
10
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sin(2θ)
2sinθcosθ
11
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cos(-θ)
cosθ
12
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cot²θ
csc²θ-1
13
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cos(2θ)
2cos²θ-1
14
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tan(2θ)
2tanθ/1-tan²θ
15
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tan(a-b)
tana-tan b/1+tan a tan b
16
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tan(a+b)
tan a + tan b/1-tan a tan b
Note 
Flashcards (31)