document.write( "Question 1064681: write the general term for:\r
\n" ); document.write( "\n" ); document.write( "2, -5, 8, -11, ..... \n" ); document.write( "
Algebra.Com's Answer #679823 by Edwin McCravy(20060)\"\" \"About 
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document.write( "First we get the general term for 2, 5, 8, 11, ... \r\n" );
document.write( "which is an arithmetic sequence and has general term \r\n" );
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document.write( "\"a%5Bn%5D=a%5B1%5D%2B%28n-1%29d\"\r\n" );
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document.write( "\"a%5Bn%5D=2+%2B+%28n-1%29%283%29\"\r\n" );
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document.write( "\"a%5Bn%5D=2%2B3n-3\"\r\n" );
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document.write( "\"a%5Bn%5D=3n-1\"\r\n" );
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document.write( "Now we multiply that general term by the sign-alternating \r\n" );
document.write( "factor (-1)n+1.  We'll call the general term tn.\r\n" );
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document.write( "\"t%5Bn%5D=%28-1%29%5E%28n%2B1%29%2A%283n-1%29\" \r\n" );
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document.write( "Edwin
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