precalc final

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Last updated 2:19 PM on 7/14/26
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13 Terms

1
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A = P(1+r/n)nt

compound interest formula

2
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-b/2a

formula for x coordinate of the vertex

3
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product rule

logc(a) + logc(b) = logc(a x b)

4
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logbx = y →

←by = x

5
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Arithmetic Finite Sum

Sn = (n/2)(a1 + an)

6
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Arithmetic Explicit Formula

An = dn + a0

7
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Arithmetic Recursive Formula

an = an-1 + d

a1 = [a1 value]

8
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Geometric Explicit Formula

an = a0(r)n

9
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Geometric Recursive Formula

an = (r)an-1

10
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Geometric Finite Sum

Sn = a1{(1-rn)/(1-r)}

OR

Sn = (a1-anr)/(1-r)

11
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Geometric Infinite Sum

S = a1/(1-r)

12
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equation to convert to/from a point to a polar coordinate (x value)

x = rcosθ

13
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equation to convert to/from a point to a polar coordinate (y value)

y = rsinx