trig identities
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Description and Tags
ap pre calc trig identitites
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21 Terms
1
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sin^2(x)+cos^2(x)
1
2
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1-sin^2(x)
cos^2(x)
3
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1-cos^2(x)
sin^2(x)
4
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1+tan^2(x)
sec^2(x)
5
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sec^2(x)-tan^2(x)
1
6
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tan^2(x)
sec^2(x)-1
7
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1+cot^2(x)
csc^2(x)
8
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cot^2(x)
csc^2(x)-1
9
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csc^2(x)-cot^2(x)
1
10
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tan(x)
sin(x)/cos(x)
11
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cot(x)
cos(x)/sin(x)
12
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csc(x)
1/sin(x)
13
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sec(x)
1/cos(x)
14
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sin(A-B)
sinAcosB-cosAsinB
15
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sin(A-B)
sinAcosB-cosAsinB
16
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cos(A+B)
cosAcosB-sinAsinB
17
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cos(A-B)
cosAcosB+sinAsinB
18
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sin(2x)
2sinxcosx
19
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cos(2x)
cos^2(x)-sin^2(x)
20
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cos(2x)
1-2sin^2(x)
21
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cos(2x)
2cos^2(x)-1