PreCalc Formulas
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sin²(θ) + cos²(θ) =
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1
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1-cos²(θ)=
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sin²(θ)
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26 Terms
1
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sin²(θ) + cos²(θ) =
1
2
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1-cos²(θ)=
sin²(θ)
3
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1-sin²(θ)=
cos²(θ)
4
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1 + tan²(x) =
sec²(x)
5
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1 + cot²(u) =
csc²(u)
6
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csc²(u)-1 =
cot²(u)
7
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sec²(u) - 1 =
tan²(u)
8
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sin(-x) =
-sin(x)
9
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cos(-x) =
cos(x)
10
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tan(-x) =
-tan(x)
11
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sin(π/2 - u) =
cos(u)
12
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cos(π/2 - u) =
sin(u)
13
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cot(π/2 - u) =
tan(u)
14
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tan(π/2 - u) =
cot(u)
15
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csc(π/2 - u) =
sec(u)
16
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sin(A + B)
sinA cosB + cosA sinB
17
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sin(A - B)
sinA cosB - cosA sinB
18
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cos(A + B)
cosA cosB - sinA sinB
19
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cos(A - B)
cosA cosB + sinA sinB
20
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sin2A=
2sinAcosA
21
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cos2A=
cos2A−sin2A
2cos²a—1
1-2sin²u
22
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bm x bn
bm+n
23
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24
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BOTNO
Bigger on top no y asymptote but there is a slant asymptote.
25
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BOBO
Bigger on bottom y=0
26
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EATSDC
exponents are the same divide coefficients
Note 
Flashcards (33)