上面的例子是1/6=1/2×3=1/2-1/3方程题是:1/(x-2)(x-3)+1/(x-1)(x-2)=1/x-1
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上面的例子是1/6=1/2×3=1/2-1/3方程题是:1/(x-2)(x-3)+1/(x-1)(x-2)=1/x-1
上面的例子是1/6=1/2×3=1/2-1/3
方程题是:1/(x-2)(x-3)+1/(x-1)(x-2)=1/x-1
上面的例子是1/6=1/2×3=1/2-1/3方程题是:1/(x-2)(x-3)+1/(x-1)(x-2)=1/x-1
本题无解 对不对?
我算出来无解……
1/( (x-2)*(x-3))=1/(x-3 ) - 1/(x-2)
1/( (x-1)*(x-2) )=1/(x-2) -1/(x-1)
所以方程左边等于1/(x-3) -1/(x-1)我也算到这一步了,然后...右边是1/(x-1)还是1/x -1 ?不好意思...我输错了,右边是1/(x-1)。真对不起相信你会做了吧...
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1/( (x-2)*(x-3))=1/(x-3 ) - 1/(x-2)
1/( (x-1)*(x-2) )=1/(x-2) -1/(x-1)
所以方程左边等于1/(x-3) -1/(x-1)
收起
1/(x-3)-1/(x-1)=1/(x-1)
整式化
x-1=2(x-3)
x=5
检验可行
解:原式=1/(x-2)-1/(x-3) 1/(x-1)-1/(x-2)=1/(x-1) 得1/(x-3)=0,因为分子为1,故值不可能为0,所以方程无解。
题是:1/《(x-2)*(x-3)》+1/《(x-1)*(x-2)》=1/(x-1)?
答案是:5
过程麻烦,看不懂加QQ378023502
1/《(x-2)*(x-3)》+1/《(x-1)*(x-2)》-1/(x-1)=0
1/《(x-2)*(x-3)》+1/(x-1)*《1/(x-2)-1》=0
1/《(x-2)*(x-3)》+1/(x-1)*《1/(x...
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题是:1/《(x-2)*(x-3)》+1/《(x-1)*(x-2)》=1/(x-1)?
答案是:5
过程麻烦,看不懂加QQ378023502
1/《(x-2)*(x-3)》+1/《(x-1)*(x-2)》-1/(x-1)=0
1/《(x-2)*(x-3)》+1/(x-1)*《1/(x-2)-1》=0
1/《(x-2)*(x-3)》+1/(x-1)*《1/(x-2)-(x-3)/(x-3)》=0
1/《(x-2)*(x-3)》+1/(x-1)*《(x-3-x^2+5x-6)/(x-2)*(x-3)》=0
1/《(x-2)*(x-3)》-1/(x-1)*《(x-3)^2/(x-2)*(x-3)》=0
1/《(x-2)*(x-3)》-(x-3)/《(x-1)*(x-2)》=0
1/《(x-2)*(x-3)》=(x-3)/《(x-2)*(x-1)》
1/《(x-2)*(x-3)》=(x-3)/《(x-2)*(x-1)》
1/(x-3)=(x-3)/(x-1)
(x-3)^2=x-1
(x-2)(x-5)=0
x不能等于2,为什么,你该知道吧。
所以x=5
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