Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Problem
Problem
The
n
th
n^{\text{th}}
n
th
term of an arithmetic sequence is given by
u
n
=
15
−
3
n
u_n=15-3n
u
n
=
15
−
3
n
. a. State the value of the first term,
u
1
u_1
u
1
. b. Given that the
n
th
n^{\text{th}}
n
th
term of this sequence is
−
33
-33
−
33
, find the value of
n
n
n
. c. Find the common difference,
d
d
d
.
Browse the problem library