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Authored by CALOS SALAS PEÑA

Mathematics

1st - 5th Grade

Used 2+ times

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61 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

∫∫∫(2x−3y+4z)dxdydz\int\int\int\left(2x-3y+4z\right)dxdydz  

xyz(x+32y+2z)+Cxyz\left(x+\frac{3}{2}y+2z\right)+C  

xyz(x−3y+2z)+Cxyz\left(x-3y+2z\right)+C  

xyz(x−32y+2z)+Cxyz\left(x-\frac{3}{2}y+2z\right)+C  

xyz(x+3y+2z)+Cxyz\left(x+3y+2z\right)+C  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

∫∫∫(x2+y2+z2)dxdydz\int\int\int\left(x^2+y^2+z^2\right)dxdydz  

3xyz(x2yz+xy2z+xyz2)+C3xyz\left(x^2yz+xy^2z+xyz^2\right)+C  

13xyz(x2+y2+z2)+C\frac{1}{3}xyz\left(x^2+y^2+z^2\right)+C  

xyz(x2yz+xy2z+xyz2)+Cxyz\left(x^2yz+xy^2z+xyz^2\right)+C  

13xyz(x2y2z+xy2z2+x2yz2)+C\frac{1}{3}xyz\left(x^2y^2z+xy^2z^2+x^2yz^2\right)+C  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

∫∫∫e4xdxdydz\int\int\int e^{4x}dxdydz  

13e4xyyz+C\frac{1}{3}e^{4xy}yz+C  

13e4xyz+C\frac{1}{3}e^{4x}yz+C  

14e4xxyz+C\frac{1}{4}e^{4x}xyz+C  

14e4xyz+C\frac{1}{4}e^{4x}yz+C  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

∫01∫12∫34 (−x−y−z)dxdydz\int_0^1\int_1^2\int_3^4\ \left(-x-y-z\right)dxdydz  

5.50

-5.50

8.50

-8.50

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

∫24∫68∫−2−4 cos⁡(y) dxdydz\int_2^4\int_6^8\int_{-2}^{-4}\ \cos\left(y\right)\ dxdydz  

−8.05-8.05  

≈−0.192\approx-0.192  

≈−2.19\approx-2.19  

≈−5.08\approx-5.08  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

∫24∫68∫−2−4 (ez) dxdydz\int_2^4\int_6^8\int_{-2}^{-4}\ \left(e^z\right)\ dxdydz  

≈−189\approx-189  

≈−132\approx-132  

≈538\approx538  

≈710\approx710  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the lower limit of z in the triple integral

∫∫∫D  f(x,y,z)dV\int_{ }^{ }\int_{ }^{ }\int_D^{ }\ \ f\left(x,y,z\right)dV  if D is the solid bounded by  z=4−y, z=y−6z=4-y,\ z=y-6  and  y=x2,y=x^2,  taking the order of integration as dzdydxdzdydx  .

55  

y−6y-6  

4−y4-y  

00  

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