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Mathematics
Mathematics
Problem
The region enclosed by the curves
x
=
y
3
+
1
x = y^{3}+1
x
=
y
3
+
1
,
x
=
4
x = 4
x
=
4
, and
y
=
0
y = 0
y
=
0
is revolved about the vertical line
x
=
−
2
x = -2
x
=
−
2
. What is the volume of the resulting solid? a)
π
(
3
⋅
3
1
/
3
−
3
4
/
3
4
)
\displaystyle \pi\Bigl(3\cdot 3^{1/3}-\dfrac{3^{4/3}}{4}\Bigr)
π
(
3
⋅
3
1/3
−
4
3
4/3
)
b)
297
π
14
3
1
/
3
\displaystyle \frac{297\pi}{14} \,3^{1/3}
14
297
π
3
1/3
c)
π
(
15
⋅
3
1
/
3
−
1
2
3
4
/
3
−
3
7
/
3
7
)
\displaystyle \pi\Bigl(15\cdot 3^{1/3}-\tfrac12\,3^{4/3}-\tfrac{3^{7/3}}{7}\Bigr)
π
(
15
⋅
3
1/3
−
2
1
3
4/3
−
7
3
7/3
)
d)
57
π
14
3
4
/
3
\displaystyle \frac{57\pi}{14}\,3^{4/3}
14
57
π
3
4/3
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