SAT官方每日一题:2012年3月16日
 2012-04-03来源:互联网
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2012年03月16日
考试类型: Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
  What is the largest possible integer value of  for which
 for which  divides
divides  ?
?
A. 2
B. 7
C. 9
D. 10
E. 14
| 正确答案:E 解析: Choice (E) is correct. Since  | 
 
       , it follows that
, it follows that  . Applying the laws of exponents to the preceding equality yields
. Applying the laws of exponents to the preceding equality yields  . From this representation of
. From this representation of  , it follows that
, it follows that  divides
divides  and that
 and that  is the largest value of
 is the largest value of  for which
 for which  divides
 divides  .
.  
               
               
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