解答:解:(1)因?yàn)?span id="pxbt15b" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
=
,
且
>,
所以
>;
(2)因?yàn)?span id="t3bjrzx" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
=
,
=,
且
>,
所以
>;
(3)因?yàn)?span id="lrv7btf" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
=
,
=,
=,
且
<<,
所以
<<;
(4)因?yàn)?span id="9btxt9z" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
=
,
=,
=,
且
>>,
所以
>>.