ACP Trig (IU) Spring Semester Final Terms 2026

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Last updated 5:08 PM on 5/28/26
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32 Terms

1
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Arc Length formula

S=rθ

2
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Area of a sector formula

A=1/2r2θ

3
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Magnitude formula

||a||=√a12 +a22

4
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Magnitude definition

the “size” of the vector

5
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Dot product formula

<a1 , a2> * <b1 , b2> = <a1b1 + a2b2>

6
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Adding vectors formula

<a1 , a2> + <b1 , b2> = <a1 + b1 , a2 + b2>

7
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Period=

2π/b

8
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Amplitude=

|a|

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Step Size=

period/4

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New Start/ phase shift

(inside)=0

11
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Unit vector

||a||=1

12
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sin2 θ + cos2 θ =

1

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<a1 , a2> =

<||a||cos θ , ||a||sin θ>

14
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Exact value means…

NO CALCULATOR!!!

15
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Know law of sines

16
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Know law of cosines

17
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Work=

force * distance

18
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Arithmetic means…

add

19
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Geometric means…

multiply

20
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For arithmtic an =

a1 + (n-1) d

21
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For Arithmetic Sum=

n/2 (a1 + an)

22
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For Geometric an =

am * r(n-m)

23
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θ MUST be in…

RADIANS!!!

24
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Cos starts…

peak/valley

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Sin starts…

Midline

26
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y intercept ⇒

x=0

27
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x intercept ⇒

y=0

28
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tan=

y/x

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cos=

x/r

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sin=

y/r

31
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Where do you graph arcsin and arctan

right side

32
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Where do you graph arccos

upper part