document.write( "Question 1083635: owing definition, compute Q(5).
\n" ); document.write( "Q(n) = \r
\n" ); document.write( "\n" ); document.write( "0 if n = 0
\n" ); document.write( "1 if n = 1
\n" ); document.write( "3 if n = 2
\n" ); document.write( "Q(n − 1) + Q(n − 2) + Q(n − 3) if n > 2
\n" ); document.write( "Q(5) =
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #697701 by MathLover1(20849) $\"\"$ $\"About$

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\n" ); document.write( " $\"Q%28n%29+=+Q%28n+-1%29+%2B+Q%28n+-2%29+%2B+Q%28n-+3%29\"$ \r
\n" ); document.write( "\n" ); document.write( " if $\"+n+=+5\"$ , it means $\"Q%285%29+=+Q%284%29+%2B+Q%283%29+%2B+Q%282%29+\"$ \r
\n" ); document.write( "\n" ); document.write( "we need the value of $\"Q%284%29\"$ and $\"Q%283%29+\"$ \r
\n" ); document.write( "\n" ); document.write( " if $\"n+=+3\"$ , then $\"Q%283%29+=+Q%282%29+%2B+Q%281%29+%2B+Q%280%29+=+4+%2B+2+%2B+0+=+6+\"$
\n" ); document.write( "and \r
\n" ); document.write( "\n" ); document.write( "if $\"n+=+4\"$ , then $\"Q%284%29+=+Q%283%29+%2B+Q%282%29+%2B+Q%281%29+=+6+%2B+4+%2B+2+=+12+\"$ \r
\n" ); document.write( "\n" ); document.write( "therefore, $\"Q%285%29+=+Q%284%29+%2B+Q%283%29+%2B+Q%282%29%2C+Q%285%29+=+12+%2B+6+%2B+4+=+22+\"$ \n" ); document.write( "

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