We define a solid A by: $$\frac{19}{x^2} + \frac{14}{y^2} \leq z^4 \quad (0 \leq z \leq 1)$$
We define a solid B by: $$x^2 + y^2 \leq z^4 \quad (0 \leq z \leq 1)$$
The volume of the solid B is ?
Please don't tell me the answer, just guide/tell me the things i need to know to solve the problem, i search on youtube "find volume from solid equation", but only got videos calculating known geometric figures.