2013年01月28 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.
If the function
is defined by
, where
, for which of the following values of
is
undefined?
A. None
B.
only
C.
only
D.
and
only
E.
,
, and 












