2012年11月20 SAT官方每日一题
考试类型: Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
for all integers

If
is a function defined for all positive integers
, and
satisfies the two conditions above, which of the following could be the definition of
?
A. 
B. 
C. 
D. 
E. 












