Week 1 trig

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24 Terms

1
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θ=s/r

θ=central angle ; r=radians ; s=arc of length

2
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Degrees to radians

degree/1 x pi rad/180

3
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1 revolution =

360 degrees ; 2 pi

4
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Linear speed

rev/min x 2pi rad/1 rev

5
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sin pi/4

square root 2/2

6
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cos pi/4

square root 2/2

7
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tan pi/4

1

8
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csc pi/4

square root 2

9
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sec pi/4

square root 2

10
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cot pi/4

1

11
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Sin 30 degrees

1/2

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sin 45 degrees

square root 2/2

13
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sin 60 degrees

square root 3/2

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cos 30 degrees

square root 3/2

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cos 45 degrees

square root 2/2

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cos 60 degrees

1/2

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tan 30 degrees

square root 3/3

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tan 45 degrees

1

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tan 60 degrees

square root 3

20
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Amplatude

Absolute value of A

21
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Period

2 pi/ B

22
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Phase shift

C/B

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24
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