AP Calc - PreCalc Review

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21 Terms

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Unit Circle

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sin(pi/6)

1/2

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sin(pi/3)

√3/2

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sin(3pi/2)

−1

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cos(pi/4)

√2/2

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cos(pi/6)

√3/2

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cos(2pi)

1

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tan(pi/6)

√3/3 or 1/√3

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Special Right Triangle 30 - 60 - 90

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Special Right Triangle 45-45-90

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Trigonometric Identities

Cos²θ + Sin²θ = 1
1 + tan²θ = sec²θ
1 + cot²θ = csc²θ

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Double Angle Identity
cos(2θ) =

cos²θ-sin²θ
1 - 2sin²θ
2cos²θ - 1

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Double Angle Identity
sin(2θ) =

2sinθcosθ

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Log Properties

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Area of a Trapezoid

1/2h(b1+b2)

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Area of a Circle

πr²

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Area of a Trianlge

1/2bh

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Area of a Rectangle

lw or bh

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Horizontal Asymptote Rules

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Point Slope Form

y-y1=m(x-x1)

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Slope Formula

(y₂- y₁) / (x₂- x₁)