document.write( "Question 1188027: How many unique ways are there to arrange the letters in the word ERROR? Deals with permutations and combinations. \n" ); document.write( "
Algebra.Com's Answer #819083 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "            As this problem is worded,  printed and posted,  it should be thrown into the closest  GARBAGE  BIN, \r
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\n" ); document.write( "\n" ); document.write( "            The only correct,  typical and reasonable formulation is as follows:\r
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document.write( "                How many DISTINGUISHABLE ways are there to arrange the letters in the word ERROR? \r\n" );
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document.write( "        There are  \"5%21%2F3%21\" = \"%285%2A4%2A3%2A2%2A1%29%2F%281%2A2%2A3%29\" = 5*4 = 20 distinguishable ways.\r\n" );
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document.write( "        We use 5! in the numerator, because there are 5 letters in the word,\r\n" );
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document.write( "        and we use 3! in the denominator, because there are 3 identical letters of \"R\".\r\n" );
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\n" ); document.write( "\n" ); document.write( "To see many other similar  (and different)  solved problems,  look into the lesson\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lesson is the part of this online textbook under the topic  \"Combinatorics: Combinations and permutations\". \r
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\n" ); document.write( "\n" ); document.write( "Save the link to this textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-II
\n" ); document.write( "https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson\r
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