1.已知x=10,求1/x-1+1/(x-1)(x-2)+1/(x-2)(x-3)+1/(x-3)(x-4)+1/(x-4)(x-5)的值2.已知1/x=1/a+1/b,1/y=1/b-1/a,求x/y的值
2022-08-21 13:20:15 16次 反馈错误 加入收藏 正确率 : 100%
题目内容：
1.已知x=10,求1/x-1+1/(x-1)(x-2)+1/(x-2)(x-3)+1/(x-3)(x-4)+1/(x-4)(x-5)的值
2.已知1/x=1/a+1/b,1/y=1/b-1/a,求x/y的值
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