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Let’s check out your problem:
d
d
x
(
x
3
sin
(
x
)
)
=
\frac{d}{d x}\left(x^{3} \sin (x)\right)=
d
x
d
(
x
3
sin
(
x
)
)
=
View step-by-step help
Home
Math Problems
Algebra 2
Simplify variable expressions using properties
Full solution
Q.
d
d
x
(
x
3
sin
(
x
)
)
=
\frac{d}{d x}\left(x^{3} \sin (x)\right)=
d
x
d
(
x
3
sin
(
x
)
)
=
Apply product rule:
Use the product rule for differentiation, which states that
(
u
v
)
′
=
u
′
v
+
u
v
′
(uv)' = u'v + uv'
(
uv
)
′
=
u
′
v
+
u
v
′
, where
u
=
x
3
u = x^3
u
=
x
3
and
v
=
sin
(
x
)
v = \sin(x)
v
=
sin
(
x
)
.
Differentiate
u
u
u
:
Differentiate
u
=
x
3
u = x^3
u
=
x
3
to get
u
′
=
3
x
2
u' = 3x^2
u
′
=
3
x
2
.
Differentiate
v
v
v
:
Differentiate
v
=
sin
(
x
)
v = \sin(x)
v
=
sin
(
x
)
to get
v
′
=
cos
(
x
)
v' = \cos(x)
v
′
=
cos
(
x
)
.
Apply product rule:
Now apply the product rule:
x
3
sin
(
x
)
x^3\sin(x)
x
3
sin
(
x
)
' =
x
3
x^3
x
3
'\sin(x) + x^
3
3
3
sin
(
x
)
\sin(x)
sin
(
x
)
'.
Substitute derivatives:
Substitute the derivatives
u
′
u'
u
′
and
v
′
v'
v
′
into the equation:
(
x
3
sin
(
x
)
)
′
=
3
x
2
sin
(
x
)
+
x
3
cos
(
x
)
(x^3\sin(x))' = 3x^2\sin(x) + x^3\cos(x)
(
x
3
sin
(
x
)
)
′
=
3
x
2
sin
(
x
)
+
x
3
cos
(
x
)
.
Final answer:
So the final answer is
3
x
2
sin
(
x
)
+
x
3
cos
(
x
)
3x^2\sin(x) + x^3\cos(x)
3
x
2
sin
(
x
)
+
x
3
cos
(
x
)
.
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2
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m
=
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