+0  
 
+2
455
1
avatar+578 

 

next questiooooon!

 

can i get a sigma formula where the first three terms in the infinite series are 2.2,2.42,2.662

 

it is similar to pascals triangle, if that helps

 Feb 28, 2018
 #1
avatar+106536 
+2

The common ratio between terms is  1.1

 

If we are just trying to find the  nth term, we can use

 

an  =  (2.2)(1.1)^(n - 1)

 

If you are summing these terms we have...

 

        inf

2.2 * ∑  (1.1)^(n - 1)  

       n=1

 

 

cool cool cool

 Feb 28, 2018
edited by CPhill  Feb 28, 2018

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