Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Calculate
d
d
x
[
x
2
sin
(
3
x
)
]
.
\dfrac{d}{dx}\bigl[x^{2}\sin(3x)\bigr].
d
x
d
[
x
2
sin
(
3
x
)
]
.
a)
2
x
sin
(
3
x
)
−
3
x
2
cos
(
3
x
)
2x\sin(3x)-3x^{2}\cos(3x)
2
x
sin
(
3
x
)
−
3
x
2
cos
(
3
x
)
b)
2
x
sin
(
3
x
)
+
3
x
2
cos
(
3
x
)
2x\sin(3x)+3x^{2}\cos(3x)
2
x
sin
(
3
x
)
+
3
x
2
cos
(
3
x
)
c)
2
x
sin
(
3
x
)
+
3
x
cos
(
3
x
)
2x\sin(3x)+3x\cos(3x)
2
x
sin
(
3
x
)
+
3
x
cos
(
3
x
)
d)
2
x
sin
(
3
x
)
+
x
2
cos
(
3
x
)
2x\sin(3x)+x^{2}\cos(3x)
2
x
sin
(
3
x
)
+
x
2
cos
(
3
x
)
Browse the problem library