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Math Unit 6

QuestionAnswer
Geometric Pattern A pattern changing by multiplycation and division
an sequence To find the rule of a pattern or find a term.
sn sequence to find the sequence with big e
geo An an= a1(r^n-1)
geo Sn sn= a1(1-r^n/1-r)
Arth An an= 1a+d(n-1)
Arth Sn sn= n(a1+an/2)
A1 first term in the sequence.
n the term in a sequnce
r the number multiping each term
Created by: 062515
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