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Question
Mathematics
∫ x3 sin 3x dx =
Q.
∫
x
3
sin
3
x
d
x
=
6176
197
KCET
KCET 2019
Integrals
Report Error
A
+
3
x
3
.
c
o
s
3
x
+
3
x
2
s
i
n
3
x
+
9
2
x
c
o
s
3
x
−
27
2
s
i
n
3
x
+
C
19%
B
−
3
x
3
c
o
s
3
x
+
3
x
2
s
i
n
3
x
+
9
2
x
c
o
s
3
x
−
27
2
s
i
n
3
x
+
C
35%
C
−
3
x
3
c
o
s
3
x
+
3
x
2
s
i
n
3
x
−
9
2
x
c
o
s
3
x
−
27
2
s
i
n
3
x
+
C
27%
D
3
x
3
c
o
s
3
x
+
3
x
2
s
i
n
3
x
−
9
2
x
c
o
s
3
x
−
27
2
s
i
n
3
x
+
C
19%
Solution:
∫
x
3
s
in
3
x
d
x
=
x
3
[
3
−
cos
3
x
]
−
3
x
2
[
9
−
s
in
3
x
]
+
6
x
[
27
cos
3
x
]
−
6
[
81
s
in
3
x
]
+
C
=
−
3
x
3
cos
3
x
+
3
x
2
s
in
3
x
+
9
2
x
cos
3
x
−
27
2
s
in
3
x
+
C