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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/10 18:02:57
![555555555555...帮我写二道数学题吧,\(≥▽≤)/~①-1^2006-(1+0.5)×3分之1÷(-4)②-1^4÷(-5)^2×(-3分之5)+|0.8-1|](/uploads/image/z/2688740-44-0.jpg?t=555555555555...%E5%B8%AE%E6%88%91%E5%86%99%E4%BA%8C%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%E5%90%A7%2C%5C%28%E2%89%A5%E2%96%BD%E2%89%A4%29%2F%7E%E2%91%A0-1%5E2006-%281%EF%BC%8B0.5%29%C3%973%E5%88%86%E4%B9%8B1%C3%B7%28-4%29%E2%91%A1-1%5E4%C3%B7%28-5%29%5E2%C3%97%28-3%E5%88%86%E4%B9%8B5%29%EF%BC%8B%7C0.8-1%7C)
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555555555555...帮我写二道数学题吧,\(≥▽≤)/~①-1^2006-(1+0.5)×3分之1÷(-4)②-1^4÷(-5)^2×(-3分之5)+|0.8-1|
555555555555...帮我写二道数学题吧,\(≥▽≤)/~
①-1^2006-(1+0.5)×3分之1÷(-4)
②-1^4÷(-5)^2×(-3分之5)+|0.8-1|
555555555555...帮我写二道数学题吧,\(≥▽≤)/~①-1^2006-(1+0.5)×3分之1÷(-4)②-1^4÷(-5)^2×(-3分之5)+|0.8-1|
(1)-1^2006-(1+0.5)×3分之1÷(-4)
=-1-1/2×1/3×(-4)
=1-1/6×(-4)
=1+2/3
=5/3
(2)-1^4÷(-5)^2×(-3分之5)+|0.8-1|
=-1×1/25×(-5/3)+1/5
=1/15+1/5
=1/15+3/15
=4/15
1-1.5×3分之1×(-4分之1)=1-0.5×(-4分之1)=1-0.125=0.875
第一个为-0.875
-1-1.5×(3分之1)÷(-4)
=-1+0.125=-0.875
第二个为15分之2
=-1÷25×(-3分之5)+0.2
=-25分之1×(-3分之5)+0.2
=-3分之1+0.2
=15分之1+5分之1
=15分之2