Suppose a solid is the region in three-space in the first octant bounded by the plane x + y = 1 and the cylinder $x ^ { 2 } + z ^ { 2 } = 1$ .If the density of this solid at a point (x, y, z)is given by $\delta ( x , y , z ) = z ^ { 3 }$ , find its mass.

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The Answer of Suppose a solid is the region in three-space in the first octant bounded by the plane x + y = 1 and the cylinder $x ^ { 2 } + z ^ { 2 } = 1$ .If the density of this solid at a point (x, y, z)is given by $\delta ( x , y , z ) = z ^ { 3 }$ , find its mass.

Suppose a Solid Is the Region in Three-Space in the First