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Consider the sequence 1, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, ...

 

What is the sum of the first 100 terms of this sequence?

 Aug 25, 2021
 #1
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Sum ==12/2 * [2*3  +  2*(12 - 1)] ==168 + 1 + [2 *9] ==187 sum of the first 100 terms.

 Aug 25, 2021

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