Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
The sum of the first n terms of an arithmetic progression is given by
S
n
=
n
(
3
n
+
4
)
S_n = n(3n + 4)
S
n
=
n
(
3
n
+
4
)
. Find the first term and the common difference.
Browse the problem library