Sequences and Summation Notation
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Sum of an Infinite Geometric Sequence
S=t1/(1-r)
Summation of an Arithmetic Sequence
Sn=(n/2)(t1+tn)
Sum of a Geometric Sequence
Sn=(t1(1-r^n))/(1-r)
The nth Term of a Geometric Sequence
tn=t1 X r^(n-1)
The nth Term of an Arithmetic Sequence
tn=t1+(n-1)d
