document.write( "Question 1132010: Simply nC(n-1) \n" ); document.write( "
Algebra.Com's Answer #748806 by math_helper(2461)\"\" \"About 
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\n" ); document.write( "\"+nCr+=+C%28n%2Cr%29+=+n%21+%2F+%28%28n-r%29%21%28r%29%21%29+\"
\r
\n" ); document.write( "\n" ); document.write( "\"+C%28n%2C+n-1%29+=+n%21+%2F+%28%28n-%28n-1%29%29%21%28n-1%29%21%29+\"\r
\n" ); document.write( "\n" ); document.write( " = \"+n%21+%2F+%28%281%29%21%28n-1%29%21%29+\"
\n" ); document.write( " = \"+highlight%28+n+%29+\"
\n" ); document.write( "
\n" );