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代数基础

课程: 代数基础 > 单元 2

课程 7: 嵌套的分数

嵌套的分数
嵌套的分数

嵌套的分数

哪一个表达式等效于 start fraction, start fraction, 2, x, divided by, y, end fraction, plus, 1, divided by, start fraction, 2, y, divided by, x, end fraction, minus, 1, end fraction ?

假设 x, does not equal, 0, y, does not equal, 0, 和 x, does not equal, 2, y.

(选择 A)
start fraction, x, left parenthesis, 2, x, plus, y, right parenthesis, divided by, y, left parenthesis, 2, y, minus, x, right parenthesis, end fraction
(选择 B)
start fraction, x, left parenthesis, 2, x, plus, 1, right parenthesis, divided by, y, left parenthesis, 2, y, minus, 1, right parenthesis, end fraction
(选择 C)
start fraction, x, squared, divided by, 2, y, squared, end fraction
(选择 D)
start fraction, 2, x, squared, divided by, y, squared, end fraction

不会做了？

代数基础

课程: 代数基础 > 单元 2

问题