Pre-Calc Unit 6
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18 Terms
1
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Area of a Sector (θ in degrees)
A = θ/360°xπr²
2
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Area of a Sector (θ in radians)
A = ½xθr²
3
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Arc Length (θ in degrees)
s = θ/360°x 2πr
4
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Arc Length (θ in radians)
s= θr
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tanθ
sinθ/cosθ
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cotθ
cosθ/sinθ
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sin2 θ + cos2 θ
1
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tan2 θ + 1
sec2 θ
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cot2 θ + 1
csc2 θ
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sinθ
1/cscθ
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cscθ
1/sinθ
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cosθ
1/secθ
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secθ
1/cosθ
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tanθ
1/cotθ
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cotθ
1/tanθ
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sine (unit circle)
y/r
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cosine (unit circle)
x/r
18
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tangent (unit circle)
y/x
Note 
Flashcards (93)