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-4
100
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avatar+-18 

An arithmetic sequence a begins 11, 7, ...

 Apr 24, 2019
 #1
avatar+101870 
+2

1.  an  = an-1  - 4,  a1  = 11 

 

2. Here :  https://www.desmos.com/calculator/xnzwqsnu8u

 

3. Probably wouldn't want to use the recursive formula to find the 100th term......we would have to find the first 99 terms and then subtract 4 from the 99th term.....extremely tedious....!!!

 

 

cool cool cool

 Apr 24, 2019

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