$\{(x,y,z) \in \mathbb{R}^3 \mid 2\cdot \max(\lvert x\rvert,\lvert y\rvert)^2+z^2\leq 4\}$
Any tips for me anyone?
I made a sketch but what now?
$\{(x,y,z) \in \mathbb{R}^3 \mid 2\cdot \max(\lvert x\rvert,\lvert y\rvert)^2+z^2\leq 4\}$
Any tips for me anyone?
I made a sketch but what now?
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Hint: You need to integrate along $z$. For a given $z$, what is the area parallel to the $xy$ plane? Your sketch should help you here. By symmetry, you can integrate from $0$ to $2$ in $z$ and double it. Your integral is $2\int_0^2 \text{area parallel to xy plane} dz$