document.write( "Question 578862: Here is the sequence : 1/3 ; 1 ; 1/9 ; 4 ; 1/27 ; 7 ; 1/81;...
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Algebra.Com's Answer #370809 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
this looks like an arithmetic series (1, 4, 7) interleaved with a geometric series (1/3, 1/9, 1/27, 1/81)\r
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