Honors Precalculus Formulas

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5 Terms

1
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Arithmetic Sequence Formula

an=a1+(n-1)d

2
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Sum of an Arithmetic Sequence Formula

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

3
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Geometric Sequence Formula

an=(a1)rn-1

4
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Sum of A Finite Geometric Sequence

Sn=a1[(1-rn)/(1-r)]

5
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Sum of an Infinite Geometric Sequence

S∞=a1/(1-r)