document.write( "Question 1095144: In how many ways can 7 different book be arrange on a shelf such that the specificed book be at either end \n" ); document.write( "

Algebra.Com's Answer #709703 by josmiceli(19441) $\"\"$ $\"About$

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For 6 of the books,
\n" ); document.write( " $\"+6%2A5%2A4%2A3%2A2%2A1+=+720+\"$
\n" ); document.write( "There will be $\"+720+\"$ with 7th book at one end
\n" ); document.write( "and another $\"+720+\"$ with 7th book at other end
\n" ); document.write( " $\"+2%2A720+=+1440+\"$ arrangements
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