Summary: Math 151, Spring 2000
Solutions to
Common Exam 3 Version A
Part 1. Multiple choice problems. Each problem is
worth 4 points. Read each question carefully. No calcu-
lators are allowed on this part.
1. If f(x) =
x
ln x
, f (e) is equal to?
f (x) =
ln x - x (1/x)
(ln x)2
f (e) =
ln e - 1
(ln e)2 =
1 - 1
1
= 0
2. What is the solution to the equation ln (x + 1) = 3 - ln (x - 1)?