Instructor: Shijun Zheng
Course: Spring 2023 - Calculus III (MATH2243-A-B)
Student: Jalen Wilson
Date: 07/11/24
1.
Assignment: Sect 15.5 Enhanced Assign
Find the volume of the tetrahedron shown using the order dz dx dy. The tetrahedron is bounded by the
planes z = 0, y = 16, x = 0, and z = y − x.
16
Complete the triple integral below used to find the volume of the tetrahedron. Note the order of integration dz dx dy.
16
y
y−x
∫
∫
∫
0
0
0
V=
2048
The volume of the tetrahedron is
3
dz dx dy
3
unit(s) .
(Type an integer or a simplifiedfraction.)
2 4 2
2.
Evaluate the integral
∫∫∫
2
2
2
x +y +z
dz dy dx.
0 0 0
2 4 2
∫∫∫
2
2
2
x +y +z
dz dy dx =
128
0 0 0
(Type a simplified fraction.)
3. Evaluate the integral.
4 π 3π
∫ ∫ ∫ y cos z dx dy dz
0 0 0
4 π 3π
∫ ∫ ∫ y cos z dx dy dz =
0 0 0
3π
3
2
sin (4)
(Type an exactanswer.)
4. Evaluate the iterated integral.
7
2x x − 2
−3
0
∫ ∫ ∫
7
2x x − 2
−3
0
∫ ∫ ∫
y
dz dy dx
y
dz dy dx =
− 80
(Simplify youranswer.) 5.
4 16 16 − y
∫ ∫ ∫
Here is the region of integration of the integral
− 4 x2
a.
∫ ∫ ∫
− 4 x2
dz dy dx =
0
b.
∫ ∫ ∫
− 4 x2
dz dy dx =
0
∫ ∫ ∫
− 4 x2
dz dy dx =
0
4 16 16 − y
d.
∫ ∫ ∫
− 4 x2
dz dy dx =
0
4 16 16 − y
e.
∫ ∫ ∫
− 4 x2
0
4
dz dy dx =
2
16 − x
16 − z
∫
∫
∫
−4
0
x
16 − z
∫
−
∫
16 − z
16
16 − z
∫
∫
0
0
16
16 − y
∫
∫
0
0
16
y
∫
dy dx dz
2
x
y
∫
−
dx dy dz
y
y
∫
−
∫
−
dy dz dx
2
16 − z
∫
0
16
(4, 16, 0)
4
0
4 16 16 − y
c.
( − 4, 16, 0)
16
4 16 16 − y
16
−4
equivalent integral in the following orders.
a. dy dz dx
b. dy dx dz
c. dx dy dz
d. dx dz dy
e. dz dx dy
4 16 16 − y
16
dz dy dx. Rewrite the integral as an
0
16 − y
∫
y
dx dz dy
y
0
dz dx dy
Sect 15.5 Enhanced Assignment
of 2
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