Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Calculate the principal value of
arctan
(
1
2
)
+
arctan
(
1
3
)
\arctan\!\left(\dfrac{1}{2}\right)+\arctan\!\left(\dfrac{1}{3}\right)
arctan
(
2
1
)
+
arctan
(
3
1
)
. a)
arctan
(
5
6
)
\arctan\!\left(\dfrac{5}{6}\right)
arctan
(
6
5
)
b)
π
4
\dfrac{\pi}{4}
4
π
c)
arctan
(
5
7
)
\arctan\!\left(\dfrac{5}{7}\right)
arctan
(
7
5
)
d)
π
3
\dfrac{\pi}{3}
3
π
Browse the problem library