计算:(1+12004+12006+12008)×(12004+12006+12008+12010)-(1+12004+12006+12008+12010)×(12004+12006+12008)=_

题目简介

计算:(1+12004+12006+12008)×(12004+12006+12008+12010)-(1+12004+12006+12008+12010)×(12004+12006+12008)=_

题目详情

计算:(1+
1
2004
+
1
2006
+
1
2008
)×(
1
2004
+
1
2006
+
1
2008
+
1
2010
)-(1+
1
2004
+
1
2006
+
1
2008
+
1
2010
)×(
1
2004
+
1
2006
+
1
2008
)=______.
题型:填空题难度:中档来源:不详

答案

class="stub"1
2004
+class="stub"1
2006
+class="stub"1
2008
=a,class="stub"1
2004
+class="stub"1
2006
+class="stub"1
2008
+class="stub"1
2010
=b,则原式变为:
(1+a)×b-(1+b)×a,
=b+ab-a-ab,
=b-a,
=class="stub"1
2004
+class="stub"1
2006
+class="stub"1
2008
+class="stub"1
2010
-(class="stub"1
2004
+class="stub"1
2006
+class="stub"1
2008
),
=class="stub"1
2010

故答案为:class="stub"1
2010

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