Unit 4 PreCalc

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Pre-Calculus

Last updated 5:38 AM on 1/22/24
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13 Terms

1
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sin2x + cos2x

1

2
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1 + tan2x

sec2x

3
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1 + cot2x

csc2x

4
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sinx / cosx

tanx

5
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cosx / sinx

cotx

6
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convert degrees to radians

pi rad / 180

7
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convert radians to degrees

180 / pi rad

8
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arc length

s (arc length) = r (radius) x (theta in radians)

9
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area of a sector of a circle

A = 1/2(r²x)

10
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Linear speed

linear speed = arc length / time

11
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Angular speed

angular speed = central angle / time

12
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Even functions

cos and sec

13
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Odd functions

sin, csc, tan, cot