下列各式成立的是{"A":"-x-y=-x-y{#\/mathml#}","B":"y-x=x-y{#\/mathml#} ","C":"x-y2=y-x2{#\/mathml#}","D":"x-y3=y-x3{#_刷题宝

题干

下列各式成立的是（）

A： $- x - y = - (x - y)$

B： $y - x = x - y$

C： ${(x - y)}^{2} = {(y - x)}^{2}$

D： ${(x - y)}^{3} = {(y - x)}^{3}$

上一题下一题 0.0难度选择题更新时间:2014-05-19 05:33:36

答案(点此获取答案解析）

C

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