解答:
解:因?yàn)?span id="bftbzdr" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
-
=
,
所以
+
=
;
因?yàn)?span id="hndt1l3" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
-
=
,
所以
+
=
;
因?yàn)?-
=
,
所以
+
=1
因?yàn)?span id="bjf3zf9" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
-
=
,
所以
-
=
;
因?yàn)?span id="rnlblpv" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
-0=
,
所以
-
=0;
因?yàn)?span id="rddnf5b" class="MathJye" mathtag="math" style="whiteSpace:nowrap;wordSpacing:normal;wordWrap:normal">
+
=1,
所以1-
=
.