document.write( "Question 939593: Use the definition \r
\n" ); document.write( "\n" ); document.write( "(n)
\n" ); document.write( "(r) = n!/ r!(n-r)! to prove that\r
\n" ); document.write( "\n" ); document.write( "(n) = (n )
\n" ); document.write( "(r) (n - r)\r
\n" ); document.write( "\n" ); document.write( "This is from a binomial theorem part of a textbook.
\n" ); document.write( "The n and r are in the same bracket with the letter n on top of r.
\n" ); document.write( "Also (n and n-r) are in the same bracket too with n-r being under n.
\n" ); document.write( "Sorry I wasn't sure how to write this question properly on a pc.\r
\n" ); document.write( "\n" ); document.write( "Any help on this would be appreciated. \n" ); document.write( "

Algebra.Com's Answer #572663 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Replace r by (n-r)   \r\n" );
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document.write( "Edwin

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