Which of the following triple integrals is well-defined? Note that there may be more than one correct
answer.
$\int_0^1 \int_0^{e^y} \int_{x^2+y^2}^1 z \, x \, dz \, dy \, dx$
$\int_0^{e^x} \int_0^1 \int_0^{e^x} \sin(x) \, dy \, dx \, dz$
$\int_0^1 \int_0^1 \int_x^1 x^2 + y^2 + z^2 \, dx \, dy \, dz$
$\int_0^1 \int_0^{y^2+z^2} \int_x^1 z \, y \, x \, dy \, dx \, dz$
$\int_0^1 \int_0^{e^x} \int_{x^2+y^2}^1 \sin(x) \, dz \, dy \, dx$
$\int_0^1 \int_{e^x}^1 \int_0^{e^y} z \, y \, x \, dz \, dy \, dx$
$\int_0^1 \int_0^1 \int_{e^x}^{e^y} x^2 + y^2 + z^2 \, dz \, dx \, dy$