document.write( "Question 319366: In the combination formula C(n,r) = n!/r!(n-r)! what is the C?
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Algebra.Com's Answer #228684 by nyc_function(2741)\"\" \"About 
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The upper case letter C stand for Combination.\r
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\n" ); document.write( "\n" ); document.write( "We can also say that a combination is the choice of r things from a set of n things without replacement and where order does not matter and is written
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