2, 1,1/2 , 1/4 , . ..

arithmetic
geometric
both
neither

I don't know how to solve it?

4 answers

http://www.mathsisfun.com/algebra/sequences-sums-geometric.html
I don't know how to do it with the fractions. Also that is the first website I turn to besides this one for help
Please Help Me!!
Found the answer..

Geometric
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