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Math 151, Fall 2000 Solutions to Exam 3A
 

Summary: Math 151, Fall 2000
Solutions to Exam 3A
1. What is the domain of the function f(x) = sin-1 1
x
?
a) [-1, 1] b) (-, ) c) (-, -1] [1, ) d) -

2
,

2
e) (-, 0) (0, )
The domain of the arcsin function is |x| 1. Thus, we need
1
x
1 with x = 0. This is equivalent
to |x| 1 or answer c.
2. lim
x 0+
ln x

  

Source: Aguiar, Marcelo - Department of Mathematics, Texas A&M University

 

Collections: Mathematics