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{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Arial;}
{\f1\fnil Symbol;}
}
{\plain {\b Hint}{ Use synthetic division
to show that H(z) is represented by a series
of nonpositive powers of z, from which
one can read out the coeficients h}{\fs16
\dn6 0}{, h}{\fs16 \dn6 1}{, ...}}
}