Evaluate the following sum.

Summation from k equals 0 to 2 StartFraction 1 Over 9 Superscript k EndFraction∑k=02

1

9k

Summation from k equals 0 to 2 StartFraction 1 Over 9 Superscript k EndFraction∑k=02

1

9kequals=

or

 

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