Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Calculate
∑
k
=
1
15
(
k
2
+
3
k
+
2
)
\displaystyle \sum_{k=1}^{15}(k^{2}+3k+2)
k
=
1
∑
15
(
k
2
+
3
k
+
2
)
. a)
1600
1600
1600
b)
1585
1585
1585
c)
1630
1630
1630
d)
1650
1650
1650
Browse the problem library