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A sequence starts with the terms 1 and 10.

 Apr 13, 2019
 #1
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Arithmetic....the common difference between terms is  10 - 1 = 9

 

So

 

1, 10, 19, 28

 

 

Geometric...the common ratio between terms =  2nd term / 1st term  = 10 / 1  = 10

 

So....each successive term is 10 times the previous one

 

So

 

1, 10, 100, 1000

 

 

Neither

 

1, 10, 13, 15

 

We have no common difference or common rato

 

 

cool cool cool

 Apr 13, 2019
edited by CPhill  Apr 13, 2019

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