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AIRA
Questions (6)
1. Scanf 5 names of you and your friends
2. Printf hi to all of them. 3. Ask all of them for their ages. 4. Printf the
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find the volume of solid inside the paraboloid z=9-x^2-y^2, outside the cylinder x^2+y^2=4 and above the xy-plane
1) solve using
6 answers
3,969 views
find the volume of solid inside the paraboloid z=9-x^2-y^2, outside the cylinder x^2+y^2=4 and above the xy-plane
1 answer
680 views
two birds are flying along in 3-space. At time t, the first bird is at the point (x,y,z) on the line
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431 views
Determine the intervals for which the curve r(t)=4sin^3(t)i + 7cos^3(t)j is smooth on [0,2pai]
1 answer
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Region A that on xy-plane is bounded by two (2) curves and a line. The curves are y=x^3-2x+3 and y=-x^2+3 while the line is x=0.
1 answer
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Answers (3)
it's ok.. thank you..
ohhh i see... so my answer just now is wrong??
Why not this kind of answer? The cylinder intersects the paraboloid at z=5. The volume inside the paraboloid is v = ∫[0,2π] ∫[0,2] ∫[0,9-r^2] r dz dr dθ = ∫[0,2π] ∫[0,2] r(9-r^2) dr dθ = ∫[0,2π] 14 dθ = 28π
