document.write( "Question 315146: +1, 0, –1, +1, 0, –1, +1, 0, –1 . . . . and so on, where the last number is +1, has a sum of\r
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Algebra.Com's Answer #225462 by Fombitz(32388) $\"\"$ $\"About$

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Every three-pair (1,0,-1) sums to zero. The final value is 1 so the sum is 0+0+0+0+...+0+1=1
\n" ); document.write( "A) is the correct answer. \n" ); document.write( "

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