【SAT官方每日一题】2012年7月17日（Mathematics > Standard Multiple Choice ）

滚吧肥汤圆UID: 3272378

考试类型: Mathematics > Standard Multiple Choice
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Read the following SAT test question and then click on a button to select your answer.

+ f" c* k, ]* F& k) bIf  and  , and if , which of the following is true?

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B.
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D.

E.  

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8 i% X  U) Z9 D- E8 b正确答案:D
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解析:
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  T2 j1 g% s1 o, _9 GIf and , and if , then rewriting as  gives . It follows that , and so . This last equation is equivalent to .