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$B%O!<%U2C;;4o(B/$BA42C;;4o(B/$B2C;;4o(B
$B0z$-;;(B (Text p.58, 4.8 $B@a(B)
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$B0z$-;;$r!"Jd?t$N7W;;$HB-$7;;$G<B8=(B
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2 $B$NJd?t(B : 1 $B$NJd?t$K(B 1 $B$r2C$($?$b$N(B
$B3]$1;;!&3d$j;;(B (Text p.59, 4.9 $B@a(B)
$B%S%C%H%7%U%H(B ( *2, *(1/2) ) $B$rMxMQ$7$F!"7+JV$7$G<B8=(B
$B?t3X4X?t(B (Text p.59, 4.10 $B@a(B)
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$BBG@Z$j8m:9(B : $BM-8B<!85$NB?9`<0$G6a;w(B

