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Question

The region specified by {(ρ,ϕ,z):3ρ5,π8ϕπ4,3z4.5} in cylindrical coordinates has volume of
  1. 4.71

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Solution

The correct option is A 4.71
Volume in cylindrical coordinations
=4.5z=3π/4ϕ=π85ρ=3(ρ)dρdϕdz
=4.5z=3π/4ϕ=π88.dϕdz=4.5z=3(π)dz=1.5π=4.71

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