绝对值小于2的整数有 绝对值不大于三的非负整数有还有几道 -1又1/2÷3/4×(-0.2)×1又3/4÷1.4×(-3/5)(-13又1/3)×1/5+(-6又2/3)×1/5+(+196又1/7)÷5若│a+1│=0,则a=( )
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 14:51:08
![绝对值小于2的整数有 绝对值不大于三的非负整数有还有几道 -1又1/2÷3/4×(-0.2)×1又3/4÷1.4×(-3/5)(-13又1/3)×1/5+(-6又2/3)×1/5+(+196又1/7)÷5若│a+1│=0,则a=( )](/uploads/image/z/2391620-68-0.jpg?t=%E7%BB%9D%E5%AF%B9%E5%80%BC%E5%B0%8F%E4%BA%8E2%E7%9A%84%E6%95%B4%E6%95%B0%E6%9C%89+%E7%BB%9D%E5%AF%B9%E5%80%BC%E4%B8%8D%E5%A4%A7%E4%BA%8E%E4%B8%89%E7%9A%84%E9%9D%9E%E8%B4%9F%E6%95%B4%E6%95%B0%E6%9C%89%E8%BF%98%E6%9C%89%E5%87%A0%E9%81%93+-1%E5%8F%881%2F2%C3%B73%2F4%C3%97%EF%BC%88-0.2%EF%BC%89%C3%971%E5%8F%883%2F4%C3%B71.4%C3%97%EF%BC%88-3%2F5%EF%BC%89%EF%BC%88-13%E5%8F%881%2F3%EF%BC%89%C3%971%2F5%2B%EF%BC%88-6%E5%8F%882%2F3%EF%BC%89%C3%971%2F5%2B%EF%BC%88%2B196%E5%8F%881%2F7%29%C3%B75%E8%8B%A5%E2%94%82a%2B1%E2%94%82%EF%BC%9D0%2C%E5%88%99a%3D%EF%BC%88+%EF%BC%89)
绝对值小于2的整数有 绝对值不大于三的非负整数有还有几道 -1又1/2÷3/4×(-0.2)×1又3/4÷1.4×(-3/5)(-13又1/3)×1/5+(-6又2/3)×1/5+(+196又1/7)÷5若│a+1│=0,则a=( )
绝对值小于2的整数有 绝对值不大于三的非负整数有
还有几道 -1又1/2÷3/4×(-0.2)×1又3/4÷1.4×(-3/5)
(-13又1/3)×1/5+(-6又2/3)×1/5+(+196又1/7)÷5
若│a+1│=0,则a=( )
绝对值小于2的整数有 绝对值不大于三的非负整数有还有几道 -1又1/2÷3/4×(-0.2)×1又3/4÷1.4×(-3/5)(-13又1/3)×1/5+(-6又2/3)×1/5+(+196又1/7)÷5若│a+1│=0,则a=( )
绝对值小于2的整数有
-1 1
绝对值不大于三的非负整数有
0 1 2 3
-1又1/2÷3/4×(-0.2)×1又3/4÷1.4×(-3/5)
=(-3/2)÷(-3/20)×7/4÷7/5×(-3/5)
=(-3/2)×(-20/3)×7/4×5/7×(-3/5)
=10×7/4×5/7×(-3/5)
=10×5/4×(-3/5)
=10×(-3/4)
=-15/2
=-7.5
(-13又1/3)×1/5+(-6又2/3)×1/5+(+196又1/7)÷5
=-40/3×1/5+(-20/3)×1/5+28÷5
=-40/3×1/5+(-20/3)×1/5+28/5
=(-40/3 - 20/3)×1/5+28/5
=-20×1/5+28/5
=(-20+28)/5
=-48/5
若│a+1│=0,则a=( )
│a+1│=0
所以:(a+1)=0或者-(a+1)=0
a=-1 或者a=-1
所以:a=-1
绝对值小于2的整数有
-1 1
绝对值不大于三的非负整数有
0 1 2 3
-1又1/2÷3/4×(-0.2)×1又3/4÷1.4×(-3/5)
=(-3/2)÷(-3/20)×7/4÷7/5×(-3/5)
=(-3/2)×(-20/3)×7/4×5/7×(-3/5)
=10×7/4×5/7×(-3/5)
=10×5/4×...
全部展开
绝对值小于2的整数有
-1 1
绝对值不大于三的非负整数有
0 1 2 3
-1又1/2÷3/4×(-0.2)×1又3/4÷1.4×(-3/5)
=(-3/2)÷(-3/20)×7/4÷7/5×(-3/5)
=(-3/2)×(-20/3)×7/4×5/7×(-3/5)
=10×7/4×5/7×(-3/5)
=10×5/4×(-3/5)
=10×(-3/4)
=-15/2
=-7.5
(-13又1/3)×1/5+(-6又2/3)×1/5+(+196又1/7)÷5
=-40/3×1/5+(-20/3)×1/5+28÷5
=-40/3×1/5+(-20/3)×1/5+28/5
=(-40/3 - 20/3)×1/5+28/5
=-20×1/5+28/5
=(-20+28)/5
=-48/5
若│a+1│=0,则a=( )
│a+1│=0
所以:(a+1)=0或者-(a+1)=0
a=-1 或者a=-1
所以:a=-1
收起