document.write( "Question 1183912: Mathematical Induction Sum\r
\n" ); document.write( "\n" ); document.write( "Use mathematical induction to prove:
\n" ); document.write( "3/1*2*2 + 4/2*3*2^2 + 5/3*4*2^3 + ... (n+2)/n*(n+1)*2^n = 1 - 1/(n+1)*2^n\r
\n" ); document.write( "\n" ); document.write( "I tried many times, but I still can't prove it.
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Algebra.Com's Answer #814417 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Of course you can't prove it. Nobody can because it isn't true.\r\n" );
document.write( "You must have copied it wrong.\r\n" );
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