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

滚吧肥汤圆UID: 3272378

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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.
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If  and  , and if , which of the following is true?
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B.
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D.

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正确答案:D

解析:

) z  L" `# h  ?% V3 d& ?; Y1 ]If and , and if , then rewriting as  gives . It follows that , and so . This last equation is equivalent to .
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