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Find the sum of the first 14 terms of 2, 5, 8, 11, ...

 Dec 4, 2019
 #1
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Just add them up!

 

2, 5, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41 !!!!!

 Dec 4, 2019
 #2
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+1

Since the first 14 terms are:

 

2,5,8,11,14,17,20,23,26,29,32,35,38,41

 

We take the sum of the first one and the last one:

 

43, and we multiply that by 7,

 

And we get 43*7.

 

Can you figure it out from there?

 Dec 4, 2019

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