document.write( "Question 1030180: Find sum to n terms of:
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Algebra.Com's Answer #646068 by Edwin McCravy(20056)\"\" \"About 
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\"sum%28%28%28-1%29%5E%28k%2B1%29%2Aexpr%28%284k-2%29%2F5%5Ek%29%29%2Ck=1%2Cn%29\" \n" ); document.write( "
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