Unit 11 Precalc equations
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Last updated 3:22 AM on 3/31/26
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12 Terms
1
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cscx=
1/sinx
2
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secx=
1/cosx
3
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cotx=
1/tanx
4
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tanx=
sinx/cosx
5
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cotx=
cosx/sinx
6
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sin²x+cos²x=
1
7
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tan²x+1=
sec²x
8
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1+cot²x=
csc²x
9
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sin(2x)=
2sinxcosx
10
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cos(2x)=
cos²x-sin²x
1-2sin²x
2cos²x-1
11
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sin(A+B)=
sin(A)cos(B)+sin(B)cos(A)
12
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cos(A+B)=
cos(A)cos(B)-sin(A)sin(B)
