Summary: Math 151 Fall 2000
Solutions to Exam 2A
Part 1. Multiple choice problems. Each problem is worth 4 points. Read each
question carefully. No calculators are allowed on this part.
1. Let f(x) = e7x
. Find f (x).
a) 7e7x
b) e7x
c)
e7x
7
d) 7xe7x-1
e) 7xe6x
d
dx
e7x
= e7x d
dx
(7x) = 7e7x
2. What is the domain of the function f(x) = ln (ex