Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
What is
d
d
x
(
sin
x
)
\dfrac{d}{dx}(\sin x)
d
x
d
(
sin
x
)
? a)
−
cos
x
-\cos x
−
cos
x
b)
sin
x
\sin x
sin
x
c)
cos
x
\cos x
cos
x
d)
sec
x
\sec x
sec
x
Browse the problem library