document.write( "Question 697085: guess a simple formula for the sequence hat begin: -1, 1/2, -1/3, 1/4, -1/5 \n" ); document.write( "
Algebra.Com's Answer #429755 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"an=%28-1%29%5En%2Fn\"..........\"n\"=\"1\",\"2\",\"3\".......\r
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\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"n=1\"
\n" ); document.write( "\"a1=%28-1%29%5E1%2F1=-1\"\r
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\n" ); document.write( "\n" ); document.write( "\"n=2\"
\n" ); document.write( "\"a2=%28-1%29%5E2%2F2=1%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "\"n=3\"
\n" ); document.write( "\"a3=%28-1%29%5E3%2F3=-1%2F3\"....and so on\r
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