document.write( "Question 1084448: prove that p(n,n)= 2p(n,n-2) \n" ); document.write( "
Algebra.Com's Answer #698575 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"%22p%28A%2CB%29%22\"\"%22%22=%22%22\"\"A%2A%28A%5E%22%22-1%29%2A%28A%5E%22%22-2%29%2A%22...%22%2A%28A%5E%22%22-B%2B1%29\"\r\n" );
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document.write( "Therefore:\r\n" );
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document.write( "\"%22p%28n%2Cn%29%22\"\"%22%22=%22%22\"\"n%2A%28n%5E%22%22-1%29%2A%28n%5E%22%22-2%29%2A%22...%22%2A%28n%5E%22%22-n%2B1%29\"\r\n" );
document.write( "\"%22p%28n%2Cn%29%22\"\"%22%22=%22%22\"\"n%2A%28n%5E%22%22-1%29%2A%28n%5E%22%22-2%29%2A%22...%22%2A1\"\"%22%22=%22%22\"\"n%21\"\r\n" );
document.write( "\r\n" );
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document.write( "\"2%2A%22p%28n%2Cn-2%29%22\"\"%22%22=%22%22\"\"2%2An%2A%28n%5E%22%22-1%29%2A%28n%5E%22%22-2%29%2A%22...%22%2A%28n%5E%22%22-%28n-2%29%2B1%29\"\r\n" );
document.write( "\"2%2A%22p%28n%2Cn-2%29%22\"\"%22%22=%22%22\"\"2%2An%2A%28n%5E%22%22-1%29%2A%28n%5E%22%22-2%29%2A%22...%22%2A%28n%5E%22%22-n%2B2%2B1%29\"\r\n" );
document.write( "\"2%2A%22p%28n%2Cn-2%29%22\"\"%22%22=%22%22\"\"2%2An%2A%28n%5E%22%22-1%29%2A%28n%5E%22%22-2%29%2A%22...%22%2A3\"\r\n" );
document.write( "\"2%2A%22p%28n%2Cn-2%29%22\"\"%22%22=%22%22\"\"n%5E%22%22%2A%28n%5E%22%22-1%29%2A%28n%5E%22%22-2%29%2A%22...%22%2A3%2A2\"\r\n" );
document.write( "\"2%2A%22p%28n%2Cn-2%29%22\"\"%22%22=%22%22\"\"n%2A%28n%5E%22%22-1%29%2A%28n%5E%22%22-2%29%2A%22...%22%2A3%2A2%2A1\"\r\n" );
document.write( "\"2%2A%22p%28n%2Cn-2%29%22\"\"%22%22=%22%22\"\"n%2A%28n%5E%22%22-1%29%2A%28n%5E%22%22-2%29%2A%22...%22%2A1\"\"%22%22=%22%22\"\"n%21\"\r\n" );
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document.write( "So they are equal.\r\n" );
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document.write( "Edwin
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