document.write( "Question 1072522: Help pls
\n" ); document.write( "Evaluate:\r
\n" ); document.write( "\n" ); document.write( "n(n-2)!/(n+1)! \n" ); document.write( "
Algebra.Com's Answer #687392 by math_helper(2461)\"\" \"About 
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Help pls
\n" ); document.write( "Evaluate:\r
\n" ); document.write( "\n" ); document.write( "n(n-2)!/(n+1)!
\n" ); document.write( "————————————————————\r
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\n" ); document.write( "\n" ); document.write( "\"+n%28%28n-2%29%21%29%2F%28n%2B1%29%21+\" =
\n" ); document.write( "\"+n%28%28n-2%29%21%29%2F%28%28n%2B1%29%28n%29%28n-1%29%28n-2%29%21%29+\"
\n" ); document.write( "—
\n" ); document.write( "The numerator is canceled by the two factors n*(n-2)! in the denominator, leaving:\r
\n" ); document.write( "\n" ); document.write( "\"++1%2F%28%28n%2B1%29%28n-1%29%29+\" =
\n" ); document.write( "\"+highlight%28+1%2F%28n%5E2-1%29%29+\" \n" ); document.write( "
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