Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Let
y
=
sec
(
3
x
)
y=\sec(3x)
y
=
sec
(
3
x
)
. What is
y
′
(
π
4
)
y'(\tfrac{\pi}{4})
y
′
(
4
π
)
? a)
6
6
6
b)
−
3
2
-3\sqrt{2}
−
3
2
c)
3
2
3\sqrt{2}
3
2
d)
2
\sqrt{2}
2
Browse the problem library